[Sloth]

It seems to me that his second remark was a factual correction of some sort.

Jim can correct me if I'm wrong, but it's my impression that new trolls are often banned in some manner that automatically deletes ALL their replies, not just ones that are out of line (quicker than having to look through every post they made).

[bolobaby]

Yeah, now that I think about it, I'm guessing that is the case, too. Perhaps IP logging identifies the trolls lickedty-split and an automated system simply removes there posts even if they are sensible.