Would adding DoFollow to my forum hurt my rankings at all? I want to add dofollow to the sigs on my forum, but I'm curious whether or not this would have a negative impact on my site at all?
Most of the time they are afraid of spammers, but I think they actually hurt themselves. If a forum offers do-follow links in a niche that I am in I stay on that forum to add value because I know by adding valuable content and insights on the forum my signature link will get me a good backlink. Since they have that I provide content to the forum which gives them more ways to monetize because of more traffic. More forums should think this way.
Adding dofollow to your forum may help, and in noway can have a negative impact. You may experience a growing number of spammers, but if the moderators do their jobs you can manage that. Also, adding dofollow links, you give the real forum contributors the chance to receive something by helping your forum.
adding dofollow to your forum wont hurt your rankings. i have a Do_follow blog and it attracts alot of spam, make sure to take some steps to prevent spammers