Here's a suggestion:

All outbound links get a rel="nofollow" attached in the <a href> tag.

(Too many people are joining for the sole purpose of link-building, etc.)

I can certainly see your point - but what about those folks who are active members of the community... should they be penalized as well? 75% of my meager traffic is indexed by Google through the forums here. Where would your site be without link building?

See here: http://forums.invisionpower.com/index.php?showtopic=235050

As I said there, I'm for adding such a feature, but allowing people to disable it in case they want to keep the normal links.

Alas, there goes me getting any credit when people link to my stuff from forums. I should get extra page ranking if IPB users are linking to my stuff damnit >=(


Can I use a .htaccess file or something to block NoFollow users? ;)

This has already been suggested (probably a dozen times).