BuddyPress: Limit the Length of Activity Updates
Shortens activity updates and comments longer than a set number of characters, which keeps the stream readable and discourages wall-of-text spam.
Snippet Library
Users snippets for WordPress
Snippets for user accounts, roles and profiles: extra profile fields, new columns in the users list, last-login tracking and tighter control of what each role can do. Handy for membership sites, client sites and teams with many authors.
BuddyPress: Mark Activity With Blocked Words as Spam
Automatically marks activity updates and comments that contain words from your blocklist as spam, so they never appear in the stream.
BuddyPress: Strip Links From New Members' Activity Updates
Turns links into plain text in activity updates posted by members who joined recently, which takes the reward out of spam sign-ups.
Email the Admin When Users Change Their Profile
Sends the site admin a short email listing what changed when a member updates their own name, email, website or bio.