@since: BuddyPress 1.5.5
Description
pre_user_login

Filters the username before being validated.

Source: bp-members/bp-members-functions.php:1693

bp_core_process_spammer_status

Fires at the end of the process for hanlding spammer status.

Source: bp-members/bp-members-functions.php:859

bp_core_render_message_content

Filters the ‘template_notices’ feedback message content.

Source: bp-templates/bp-nouveau/includes/template-tags.php:222