Since many of the lowlife SPAMMERS on this board really seem to hate SPAMCOP , that should give you in a hint that it is somewhat effective.
Your individual complaint might not carry a lot of weight, but when multiplied by hundreds or thousands, it may might life difficult for the spammer.
If its a porn spammer, you might consider contacting the sponsor, CC processor, webhost, or even upstream provider. Unfortunately, some of these guys are partners with the spammer, so that may ...or may not make a difference.
Good luck!
