BuddyPress Editable Activity lets users easily edit their activity posts and comments.

This plugin gives members — and site admins — the ability to edit activity updates and comments from the front end. Users can correct typos, update text, and keep their activity stream clean without needing the admin to intervene. Admins can also configure settings such as whether editing is allowed for everyone or only for specific roles, how long after posting edits are allowed (set it to unlimited by using “0”), and which parts of an activity or comment can be edited. The plugin works with all BuddyPress-compatible themes, supports visual editing, remains responsive on mobile devices, and improves the overall community experience with better content control.