Since this weekend we've seen a huge amount of spam getting posted both here on the forum and on the main site. We're busy tracking and cleaning it and figuring out the best way to prevent this from happening.
In the mean time, here's how you can help us fight it:
On the forum
If you see a spam message, just 'flag' it:
On the screen that pops up, select 'spam':
On the main site
If you see someone leaving spam comments, post spammy models (crappy 3D models with spam links in their description), or set up a spam account (again, spam links in their account description), please contact me on firstname.lastname@example.org and I'll handle it.