I have a forum where recently people have been signing up to post links to pages in their interest (sites they work on) which are relevant to our topic (Knight Rider) - but these people are just signing up posting the link and leaving. They are doing that for SEO purposes.
Now I don't want to stop people from posting links, I just don't want these new people who are abusing our sites high SE ranking to mooch off of us.
I'd like people to have to have at least 5 or 10 posts before the system will transfer their links to something clickable.
Is anything like this possible?