Lets say I blast a main site with 500 links per day consistently, will it it improve my rankings? What is the reason behind penalization for using SB? Crappy Links or inconsistent Link Velocity? I ask this because I have a 1 year old site with plenty of links that used to do well but now its in the 400s on the serp. Sometimes it pops up in the 2nd page and sometimes it disappears. Im getting sick of it, i wonder what would happen if i blast it with SB over a month. Anyone has success with blasting main site that is aged?