Spammers more then none use probably the same computers, access the same site, and use it almost the same as anyone else would. "Same" kind of computers anyways.
Wordfilters think would get hard to use after awhile. But still not so easy to work with either. Know spellcheck on about anything doesn't work. If they even have it.
Rather that is any help, I don't know.
Links should just drop link of use for use to site, not link from site to site. But would need copy/paste function. But still, again, is just an idea.
But who knows, alot of thought for me.