BuddyPress.org

Are you logged in? If you visit /registration/ as a logged-in user, then you will be redirected to /members/. Setting your homepage to your registration page will mean you get redirected to /members/ when you visit your homepage (when logged-in).

Yes !

Configure BuddyPress

Modifying the Registration Form

Customizing

– Is it possible as admin to change their username in the back office?

No, WordPress does not allow it. Usernames must be unique.

– Why the dot/period or special characters are allow in the username during the registration? and how i can block this?

There are various methods to restrict the characters allowed in a username when registering. Here’s one example:
http://wordpress.stackexchange.com/questions/124697/limit-username-to-specific-characters-a-z-and-0-9

WordPress is the software behind buddyPress.
If you need custom roles&capabilities on your site, you can add roles programatically as explained on your mentionned tutorial. If it works, site admin can attribute one of the additionnal role to members, within admin.

BuddyPress, at this time, handles only member types. A member type is not a role or a capability à la WordPress, but only a way to sort better your members. In other words, a kind of a member category.

To handle such behave from front-end while registering, you can associate a xprofile field value with an existing WP role. See here for a solution (untested) provided a few month ago.
https://buddypress.org/support/topic/how-to-assign-a-wp-user-role-based-on-a-registration/#post-232887

Add snippet to your child theme functions.php or into bp-custom.php and give it a try.

There’s something causing the registration form not to submit and that’s likely to be either a rogue plugin, theme or custom code you’ve introduced. The usual troubleshooting steps are to deactivate everything and work forward step-by-step, testing as you go. That’s the only way to determine where the problem has been introduced.

Try disabling all plugins aside from BuddyPress. Sometimes a rogue plugin can interfere with the registration process.

BuddyPress and WP do not have two usernames. Is this the BuddyPress registration form or another form by a plugin?

It is standard! At least if you use xprofile component to let your users enter their signature.

1) Create a new field. Call it Signature and give it a textarea type.
2) Once this field is edited by a user, during registration or later, the signature appears on his profile.

3) if you want this field somewhere else, for ex on the profile header, you simply write a function to call this field and hook it into the template you want.

Ie. Add this to child theme functions.php or bp-custom.php

function my_signature() {	
if ( bp_is_active( 'xprofile' ) )
   if ( $signature = xprofile_get_field_data( 'Signature', bp_get_member_user_id() ) ) : // field name; case sensitive				
      echo $signature;	
   endif;
}
add_filter( 'bp_before_member_header_meta', 'my_signature' );

Or to use Henry’s advice
add_filter( 'bp_after_profile_content', 'my_signature' );

Reference

User Extended Profiles

Displaying Extended Profile Fields on Member Profiles

Check the translation file: buddypress_CN.po (with a text editor like Notepad++) and verify that email text are all in plain text. Those strings shouldn’t contain any html entities.

Read from here for more details about email customization:
https://buddypress.org/support/topic/customizing-emails-template/
https://buddypress.org/support/topic/registration-process/

@projectslimited – yeah, welcome to the club! I had one bp site with registration turned off for 18 months.. turned it on to test some thing – hours later – dozens of new “groups” and spam accounts.

My main site I depend on buddypress humanity as main line of defense.. but also add the plugin “good question” (changing the defaults on these two!)

I also use “geo ip block” on all wp sites now. (changing some defaults)

that seems to help 95% – then I got so tired of the manual spammers that I added the apache gep redirect thing from maxmind lite.. and block all visits from Russia, China, Ukraine, and a few others completely.

Saves a ton of bandwidth and server resources – and makes it easier to find the cdir blocks of US and UK ISPs to block via htaccess (none of my web site visitors are using COLO Crossing Transport to visit my site- so all their cidrs eg:
23.94.144.0/20
23.94.144.0 – 23.94.159.255

blocked…

I have been messaging with a wordpress plugin author about modding his plugin that pulls info from failed logins and puts them into iptables – suggesting a few mods that can make that info useful to those of us who do not have access to or want to get into iptables modsec stuff – hopefully those suggestions will come into a new version of that plugin later this year.

with my multi-site setup I use a ‘new blog defaults’ plugin to set any new blogs created to automaticcaly have the noindex setting in wordpress, and noinded nofollow settings from yaost.. so even if one manual spammer gets in and makes blog – it does no good, and does not show up on the radar of the other spammers.

I recently had to block Japan entirely as I started getting daily spam hits from there.. of course each person’s setup will vary – I can’t block all countries on all my sites, so some sites I set the ip geo block to whitelist just one or two.. on other sites I setup a blacklist to block 20 or so..

See if you can use this plugin:
https://wordpress.org/plugins/bp-registration-options/

You’re welcome !

To all readers, Codex reminder when getting 404, missing BP pages, not found errors after setup or upgrade ! 😉

Settings → BuddyPress → Pages

Pages are automatically generated for the BuddyPress components you enabled in the components settings using the default slugs based on the name of each component activated. Make sure that activated components have corresponding pages assigned to each in this panel.

Directories
Associate a WordPress Page with each BuddyPress component directory.

• Activity Streams (if activated)
• User Groups (if activated)
• Members > this is core and can’t be removed/modified

Registration

Associate WordPress Pages with the following BuddyPress Registration pages.

• Register
• Activate

Note: registration is not a BuddyPress component but part of WP core.
When you allow user registration, you have to add manually these pages.

To all readers, Codex reminder when getting 404, missing BP pages, not found errors after setup or upgrade ! 😉

Settings → BuddyPress → Pages

Pages are automatically generated for the BuddyPress components you enabled in the components settings using the default slugs based on the name of each component activated. Make sure that activated components have corresponding pages assigned to each in this panel.

Directories
Associate a WordPress Page with each BuddyPress component directory.

• Activity Streams (if activated)
• User Groups (if activated)
• Members > this is core and can’t be removed/modified

Registration

Associate WordPress Pages with the following BuddyPress Registration pages.

• Register
• Activate

Note: registration is not a BuddyPress component but part of WP core.
When you allow user registration, you have to add manually these pages.

No need to be rude. I’m trying to help you by asking questions, that’s all.

As you use a third party plugin, i suggest you to deactivate it or even, to remove it completely and to test WP+BP only. Don’t know the plugin you mention, but one thing is sure, something is going wrong. On a standart install, handling pending members is generally not a problem.

WP was updated 48 hours ago to 4.3 and is working flawless with BP2.3.2.1. (i have 6 BP site running on different configuration, without issues). If your issue appeared after this update, it is possible that a plugin is now no more able to work correctly with this new release.

FYI, BRO is compatible up to: 4.2.4 and was last updated: 2015-7-21. Pretty recent, but who knows where the error comes from ? Have you asked for that issue on the plugin support ? No…

If you thing it is an issue with BuddyPress, report the bug, describe the way to reproduce by opening a ticket on BuddyPress Trac, the only place where you can expect a fix. If BP devs agree with the issue.

More about BP bugs on Codex.