[edit] I misunderstood you and thought you meant banned just in general. It's not possible to be blacklisted from getting scouted, and if someone scouts a user who uploads iffy work a mod will usually just remove them from being scouted.
I'm not a mod, but I saw your work a long time ago and I don't think you were banned since there doesn't seem to be any rulebreaking submissions (Plus, they would have been removed which would have given you a notification). I just think the people who scouted you were banned.
Do you happen to remember who scouted you? Because there was some drama in the art community a while ago, and someone who scouted a lot of artists ended up getting banned and left the community.