BuddyPress.org

When a user is marked as spammer – all user activity/groups data is deleted. Only admins can do that, AFAIK.
There are no logs or records for this action. And this action is irreversible.

// this function should return array with users ids, like this: array(123,3423,21,34231)
$user_ids = my_custom_ids( 'gender', 'female' );

if ( bp_has_members( array(
'type' => 'online',
'include' => $user_ids
) ) ) :

It’s possible, but there is no ready-to-use out-of-the-box plugins for that.

Categories: http://wptavern.com/new-plugin-adds-taxonomies-to-buddypress-groups or https://wordpress.org/plugins/bp-group-categoriestypes/

Location:…[Read more]

I checked the code – it won’t decrease number of queries. All the data for labels are taken from a global variable, which is set when all fields are populated. So you won’t decrease server load by removing labels.

So you can do that via CSS. There is no other simple solution for that (I’m assuming you are on a BuddyPress 2.4.x). Editing template…[Read more]

There is a setting for this on a screen, where you edit this field: http://take.ms/B1sZI
So just select Enforce field visibility and Visibility selectbox change to Only me.
Thus users (and admin, of course) will be able to see only own field data, with no ability to see other users birthdays.

Use @username for each user you want to mention in a blog post – and they will receive notification.

Blog posts:
https://wordpress.org/plugins/new-post-notification/
https://wordpress.org/plugins/notify-users-e-mail/
Other options: http://www.mailpoet.com/post-notify-solutions-wordpress/

And I didn’t find anything special for activity updates.

If you have WordPress installed with permalinks (so urls are like: example.com/sample-page, and they work – display the content of the Sample Page) and you can upload images without any errors on Media page in wp-admin area (and can attached/insert into post/page content in WYSIWYG editor) – you are good to go.
That’s basically what those 2 last…[Read more]

Do you want them to be notified on a new blog post or a new activity post update?

Post this to bp-custom.php or functions.php of your theme.

function redblacked_more_groups_per_page($args) {
$args['per_page'] = 40;

add_filter( 'bp_after_has_groups_parse_args', 'redblacked_more_groups_per_page' );

Just go to StudioPress forum and ask there, as it’s clear from your post that it’s not a BuddyPress issue (as everything is ok in 2016 theme).

Seems, nothing to do here with BuddyPress. It’s better to post this question somewhere else, on basic development forums. You will need basic css/html and perhaps js skills. Or try to hire a developer.

There is no such plugin. But it’s a good idea. Noted. Hope fully will create it soon. You can subscribe to me on github – that’s where I store free plugins.

I’ve developed this plugin: https://github.com/WeFoster/bp-feeds
Currently it does not auto-update activity stream, any user should visit feeds page to get data from feed source.
But auto update will be implemented 🙂 It’s just a tricky task.

Would be really cool if you could test it and provide feedback (ideally – using github issues, but this…[Read more]

All fields in default Base (Primary) fields group will appear on registration page. Those fields can be required or not, based on Required setting for fields: http://take.ms/soyY7
So if you want to remove some custom field from registration page – just move it to another fields group (out of Base fields group).

Try these:
https://wordpress.org/plugins/buddypress-restrict-group-creation/ (and this http://premium.wpmudev.org/blog/how-to-restrict-buddypress-group-creation-based-on-user-roles-and-capabilities/)
http://stackoverflow.com/a/23513783/515162

Try this: https://buddypress.org/support/topic/disable-leave-group-and-request-membership-buttons/
And try this plugin as well: https://wordpress.org/plugins/buddypress-mandatory-groups/

Look in the WordPress codex.

Because of no .htaccess file (and no WordPress permalinks) BuddyPress will not be working properly. It requires permalinks enabled. On BuddyPress activation you should see this text:
You must update your permalink structure to something other than the default for it to work.