I've created an affiliate website and have been trying my hand at white hat seo as I'd like this website to rank, and stay ranked for awhile. I've been studying competitor backlinks and found a few good forums related to my niche that allow me to get do-follow backlinks through my profile / posting. Now I posted about 10 times on each forum I found, and within two days of buying the domain I had 8 keywords in the top 100 which was nice. My question is, should I continue to post on these forums on a regular basis, and would those additional links be beneficial to my ranking or hurt it? Would 100 do-follow backlinks from one niche releated forum website be better then 10 backlinks from that website, have no difference in ranking, or hurt me in the long run??