they do not stop now a days, like a unruley child possed to end any control or effort to show them how life really is when they think they know it all or so they think.
Lots has changed over the years. Spammers are no longer motivated by the challenge, it has become big money now. There are now entire organizations dedicated to making it their business. The two major sources of Spam are from bots installed through back-door Trojans and by people recruited by Spam to "work out of your own home". The guy in charge provides either the bot or the human with ads, address lists and the software needed to send out mass mailings while concealing the true source. The human's get a cut of the advertising profits based on how many responce they get, but the bots don't even get that.
Did send some to spam cop as you mentioned but nothing back yet!
I've been using them for years and have gotten a handful of thank-you notes from ISP's who told me they took care of the spammer, but I'm sure that was only a minor irritant to them to have to register a new account. I probably helped in a very small way to bring a big guy or two to justice, but apparently that's become more difficult now as the FTC offered an award for any that could help them find telephone spammers: http://www.latimes.com/business/technology/la-fi-tn-ftc-robocalls-challenge-priz e-20121019,0,5995781.story.