I've tried posting on at least 10 different dating forums. I got kicked off them all for posting my link - just once. I began by reading tons of interesting posts, and then making intelligent and informed posts without a link or signature link. Then, after a while, I decided to sneak in a signature link in a very long, well-written post. Bam! I was shut down instantly every time. It's absolutely ridiculous. Their signatures allow you to insert links with anchor text, but then they kick you off for using it. I emailed a few of them back, explaining that I was not spamming. I was reading everything carefully, and writing very intelligent and informative answers. It didn't matter. I'll be watching this post to see if anyone has something to add.