Forums are excellent source of relevant backlinks you need that you wouldn't just find elsewhere. Through an effective signature on your profile it will help you get more traffic, plus a possibility of making relationships with other forum members for mutual benefit.
All the profile links posted in the forums are unique.
Safe from Penguin and Panda
Major search engine approved
Perfect search engine optimization process. Attract thousands of visitors traffic from forums post as well as get high quality backlinks. Google loves this kind of forum link building and will give maximum benefit to improve your rankings.
This process must increase your site's ranking with guarantee, no otherwise. If you follow all the process in this way then your site will never get punished by Google. Because this is most safest way to optimize a site.