I was just about to post that link!
I think most of the spammy links are posted by people these days rather than robots so it's hard to keep on top of. You just have to delete them when you see them. Everyone can help out by reporting dodgy posts and being sensible and not clicking on anything that looks dodgy! Oh and make sure you have antivirus! If you are on windows
microsoft security essentials is good.
We did ban loads of IP addresses but unfortunately it affected some legit people too so we had to relax it a bit too

will have a look and see if there is anything else we can do.