One day, someone raised the issue of the account Flameviper being unblocked (maybe it was me, I don't remember). I didn't have a crusade for Flameviper to be unblocked, I simply suggested the idea and left the discussion alone (although I said "I agree" on the noticeboard). It was generally agreed that Flameviper had not done anything wrong in the first place, and so that account was unblocked. At this point, "Flameviper" was unblocked (although the account's past was still suspicious) and Two-Sixteen had never received so much as a warning for anything.
You had two accounts. You used one to recommend the other be unblocked without making it clear you controlled both. That's abusive use of sockpuppets, and the blocks are valid.