linkbuildr - 4:56 pm on Nov 11, 2010 (gmt 0)

There's absolutely no need to build links from forum profiles except on the few related to your business. Then again you shouldn't worry about the profile's link, and more about the quality participation you're doing within your niche(on said forum).

Forum profiles barely stay indexed and if you're doing "tons" of these profiles, it's going to be easy to spot and devalue.