Can someone explain to me...

...what this "Current Activity: Sending Forum Feedback " means when you look at the user's status in the Who's Online section?

It means that user clicked the 'contact us' link. Probably a spambot using that form to tell the forum management how they can get vi@gra for cheap. I say this based on recent spam, can't imagine most users needing that page...

Thanks, and no, it was a recent user. I'm guessing he was feeling mistreated and wanted to complain.