Remote site comments , spam or attack

I use intense debate comment system and wp 3.0.4 there seems to be database error when some guy probably a bot trying to insert a very long comment into comment system and links[100 in number] to porn sites ??
here is a copy of the log if some one might help me avoid the thing

[Moderator note: snipped spam code block, please use the pastebin as per the Forum Guidelines]