BuddyPress.org

I agree with David about how a user will see the @username and might delete the text.

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Originally posted by Andy:

Why would someone else’s activity display on your activity stream?

True, but I think adding an @mentions page on the displayed-user’s profile would help remedy users who like the wire.

You could make this page viewable if you’re logged in only.

One thing I don’t like about Twitter is I have to go to search.twitter.com to view @mentions of another user.