To name the first random few I got using the forum search function: Tygrä (multiple times), Divona, Lorraen, Puuha, Grumnir, Propulsión, Djansoul (oh damn, he actually quit, no wonder he stopped posting).
Also:
I wish the search function would use some logical way to arrange results, though. Or that forums displayed the quoted user’s name when quoting from another thread.