I just came to know that most of the forums use no follow attribute in the signatures, If thats true. If its true, then whats the fun of forum posting( I am not saying for posting in this forum, since DP has increased my SEO knowledge a lot )
I will give an example like sitepoint forums. They switched their link in a no follow link. BUT participating in their community is great. Because you will read their discussion professionally and will really enhance your knowledge.
Forum is not only for getting link, but also for gain knowledge. Well if you post valuable content on forum then you have chance for getting few traffic by forum.
The knoweledge and resources we have at these forums is unmatchable especially DP, and I completely agree to that but if it is true that maximum of the forums are no follow.
I have a new do follow forum, it is new but it will be big in future. See it and if you think its worth to join then please join it http://zeustek.com/seo-forum/index.php?topic=12.0
You shouldn't post on forums simply to increase your backlink count, because the backlinks are worthless, so it's just adding a few more backlinks to your list, nothing major, if you join on-niche forums, no-follow links can still bring you some extra traffic, which is always nice to have, plus posting on a on-niche forum can give you a lot of ideas for new blog posts, once again is always good
sure you can not leave DP, because DP give a lot of knowldg otherwise DP is DOFOLLOW Forum, just join the dofollow forum. Or if you join your interest forum but the forum give relation nofollow, you still get satisfaction
I submitting to thousands of forums sites, profiles, do posting, and all links are dofollow, signatures too.