Really?
If you really think about it, do you really think a true troll would admit right on a forum that they do it? Sounds like a quick way to attract attention and have your posting habits looked at more closely, get banned, and lose the ability to do it.
Kind of counter productive, don't you think?
All I can say is, I don't troll, and I am as mystified about the mentality of those who do as you are.
EDIT: There weren't any replies here when I started typing this. Never thought about admitting to "past" trolling.
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I'm not likely to be around much longer. As before when I first signed up here years ago, I'm finding that after a long hiatus, and after only a few days back on here, I'm spending way too much time here again already. So I'm requesting my account be locked, banned or whatever. It's just time. Until then, well, I dunno...