Ok I am trying to build links to one of my sites. So I built a forum on one of my sites.

Then I'm using this service to get more back links: http://www.jetconvo.com/index.php

I'm using the site I want to gte backlinks in the singature.

So I was wondering if this is good or bad. If its bad can my site thats in the signature get blocked or my site that has the forum get blocked?