[neverending]

Guests can, however, click on links, and that is the purpose of all this spamming- to provide links to websites, and then provide traffic to those sites so they can rise in search engine rankings.

Spambots not only post threads they also post visitor messages to themselves, and then armies of bots come to click on those links. I delete spammy visitor messages when I find them, so there's nothing for the bots to click on when they get here, however, if they happen to join when I'm not around, I'll miss it and their mission is completed.

There are thousands of these bots and their armies registered here.