There is at least one 'persona' who manufactures dozens of usernames in order to post on this forum. This person uses other forums to gather personal information (not available here) and posts jaw-droppingly gratuitous messages to and about other contributors. (There may, in actual fact, be more than one, it is a little hard to tell at times). He is certainly a Troll.
There is a suspicion (it would take too long to explain) that a group of people have (away from the site) swapped details of username/passwords and will take it in turns to post under these usernames wrong-footing the 'genuine' contributors. These are Trolls, because of their behaviour.
There is certainly ONE user, who has been banned from this site, who also develops many usernames with which to come back to this site. When challenged he has the propensity, usually in direct correllation with the amount of alcohol he has consumed, to make offensive and distastsful comments to other users. He is a Berk.
I think the traffic you have witnessed has been a roughly 50/50 split with discussions about who is the/are the Trolls and who is the Berk.
You certainly could argue that they all ought to be left to stew in their own juices, but since the 'report this answer' facility has been restored, the trolls can now zap innocent users from the forum.
If I had 10 names, I could make you disappear from here, Mustardmit.
I hope that suffices as I'm off to bed in a minute............:o)