BuddyPress.org

@sanusalim If you have added register page as a menu, you can hide using https://wordpress.org/plugins/nav-menu-roles/ via menu specific option.
Make sure you have disabled “Anyone can Register” from Setting >> General
http://prntscr.com/m70i4s

@morgunovvit BuddyPress have added some customizer options for Member and Group navigation; you can try to toggle those values and save options again
https://drive.google.com/a/wbcomdesigns.com/file/d/1jpLOsL5BFbtrvFoePoT8-iUnckVNSNF9/view?usp=drivesdk

@mbfit are you using latest BuddyPress Version. Let me know your server environment to replicate the issue.

@sandrasteen @ectabro other BuddyPress pages are working fine??

@lbellipanni, You can try BuddyPress profile progression plugin, it will add a profile progress bar on the profile.

@shiva0291 You can change admin email from Setting >>General

@gastronimo still have any confusion?

@astridwordpress You can also moderate any comments.
Comment option specific setting is WordPress default
https://codex.wordpress.org/Settings_Discussion_Screen

@jerrytoet You can try https://wordpress.org/plugins/bp-activity-filter/
It will work with legacy template structure only, for nouveau new updates will release soon.

@astridwordpress You can enable HTML link in comments from setting >> discussion

@cleiton1985 You can read this plugin, it will guide you how to inspect CSS code they have explained with wp forms example
https://wpforms.com/how-to-customize-button-styles-with-css-with-examples/

@mlasell You can https://wordpress.org/plugins/bp2wp-full-sync/ it will allow you to map xprofile field with user meta.

@brunomac
It seems right,

for ref: you can also check https://wordpress.stackexchange.com/questions/46510/allowing-users-to-add-html-to-bp-groups-description-how-can-i-error-check-html-o
https://github.com/buddypress/BuddyPress/blob/master/src/bp-groups/bp-groups-filters.php

@shnactor1 not getting any filter for it, you can check in trac might be any lead developer can help on it.

@cleiton1985 You want to change the button style of “friendship-button” with custom css or button class?

@rumaan That’s criteria specific friendship, you will need to code for it
For ref you can check https://wordpress.org/plugins/bp-automatic-friends/

@emmanuel1234 There is an old plugin https://wordpress.org/plugins/cd-bp-avatar-bubble/ , not sure if it’s still working or not. You can try the same concept.

@darksilence1990 It might be some 3rd party plugin conflict, Try to disable other user-specific (like login redirect or any BuddyPress add-on )plugins for a while check profile again.

@shnactor1 It seems, Online Duration Query is hard coded for 5 min
https://raw.githubusercontent.com/buddypress/BuddyPress/5416edd2146df0aca06cba1007f5175dc827135f/src/bp-core/classes/class-bp-core-user.php
You can request for the filter from trac ticket https://buddypress.trac.wordpress.org/report

@chaddblanchard You can check https://buddydev.com/hiding-users-on-buddypress-based-site/