@lololulu19 The old forum system had user classes, starting at Lurker. In some cases, some users were affected by a forum glitch that would lock them in at a user class (usually Lurker) despite surpassing the number of posts needed to move up a class or two. That's how this happens.
Now as for this claim of a user who only attacks people, feel free to DM me with the details, and I can look into this and escalate it if necessary.