Have updated the plugin and audited the strings. Please let me know if the new update fixes it for you.

Regards
Brajesh

Hi Thorsten,
Thank you. Yes, The button label is no translatable. I will update in next 1-2 days with the translations.

Most of our plugin from 2 years or earlier might have some translation issue here and there. The translation support was added later and a few strings might not have been translated properly.

If you find any other plugin, please do let me know and I will update.

It should not be an issue for newer plugins.

Regards
Brajesh

Hi Kerem,
I am sorry but BuddyPress email had issues with Hotmail in past. I have seen this issue and seen tyhe solution using “List-Unsubscribe” on BP trac.

I am sorry but I don’t have a solution for this. All I can say it will be most probably a generic issue with BuddyPress email and not specific to Anonymous activity.

You may want to keep an eye here
https://buddypress.trac.wordpress.org/ticket/7390

Regards
Brajesh

Hi Kerem,
It is a bad idea to disable a feature. My suggestion is to troubleshoot and find the reason.

Still, if you want to remove it, Put this code in your bp-custom.php

add_filter( 'bp_directory_groups_search_form', '__return_empty_string' );

Regards
Brajesh