There was no attempt to dump 20% of the supply on EtherDelta. That would be a stupid idea because of how little buy support there is. A contract was already written into the code, distributing 0.000125SUB1X to every participant. We overestimated the number of people that would take part by about 1500, so a lot of spare SUB1X was left over. We were going to do a community vote determining what to do with these spare funds , but as the issue has been brought to light, action will be taken immediately. A poll will be conducted right now.