I'm developing some kind of bot/software that scraps a big amount of pages that allow commenting and posts comments for the linkback. Now, before I actually finish doing something useless I wanted to be sure from the experienced people at BHW, nofollow links do help anyway? I'm pretty sure I've read in a few threads they do help, even if they are not as important as do-follow ones. I've checked these websites, and some even are do-follow, so it might be somehow good anyway. pd: if I get to finish this tool I'll release some version here when I can! Thanks!