I run a phpBB board, and I've noticed that my board has been getting "new member spam" to the tune of 3-7 new ones/day. The reason they are doing that is to get their websites into memberlists everywhere that Google will crawl, and more links will improve their ranking in the search results.
Since we are a very localized forum, I'd suggest that we could block their IPs from accessing the site. Here's a starter list (you may have to modify it slightly for whatever program you are putting it into - I personally use it at the network (iptables) or web server (apache conf) levels.
213.
81.
62.
193.
212.
165.21.154.
216.12.202.82
64.237.
195.
194.
66.192.
217.
212.0.0.0
202.
12.36.98.
Unfortunately, on my forum, I haven't convinced the boss to do that yet because we have a number of customers that can be scattered throughout the world, and blocking those IPs could deny them access to us. We may block it on the forum, though.
I know it doesn't seem like much, but I don't personally want to get a bunch of porn links on my forum and/or a bunch of junk results when searching Google. I'm going to email Scott a tip that I don't want to post here, just in case those Russian guys notice.
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