Well, the point is that the sig links here are do follow but if that's you're strategy on getting backlinks then you're playing a poor man's game. These links don't help you out much with the SERP's. You should be here to learn real SEO and means of getting quality backlinks. That's actually why the forum was created and what made it so popular. Try the search feature using keywords such as: get quality backlinks Two months from now when you find your SERP ranking finally has moved upward, you'll be glad you did.
Did any one checked with DP source code of home page? there are rel="nofollow as a attribute in site source for many fields.
Look who's talking, read this thread http://forums.digitalpoint.com/showthread.php?t=1534967 TheCrabb trying to fool everyone just to gain some backlinks.