By default, Limewire has you sharing your download folder, if not more. So no, you wouldn't have to be an idiot, just a member of the larger segment of the P2P community. By the way, the term for those who are not sharing is "leech".

As far as the whole child porn red herring, sure, that's possible. The word unwitting means unknowing or unaware, like by accident. Nearly ANYTHING is possible by accident. For example, someone could unwittingly let the forums know that they are part of the IPod spammers by continually butting into a conversation regarding said spammers with a bunch of non sequitur comments intended to derail the discussion.

So anyway, the bottom line is it looks like the spammers have changed their tactics and are now enabling chat. I currently have an open search query with a 122.4 kb .wmv file and 29 hosts, chat enabled.

Any meaningful information, opinions, experiences, or tactics would be appreciated.