Lot of false information in this thread. I don't have the time to break it all down.
But let's get the easiest one. Joseph Budden wasn't blackballed. He was difficult to deal with due to being bi-polar and bytch made and Def Jam didn't know how to market him because he didn't carry himself like he wanted to be a star. Def Jam also fukked his album by putting his hit single on the fast and furious soundtrack that dropped a week before his album. Difficult to deal with + low sales =/= blackballed. He's had other deals since then.
Blackballed is Irv Gotti physically picking up phones and calling people to not fukk with 50 and offering them murder Inc artist at a discounted price to cut 50 out.