Weaker hands than the guy who sells 30k BTC at the bottom of a downtrend on one exchange via a single ask? I can't even imagine those hands, they must be long dead. 
Wouldn't it be something if it was found out to be a self running bot created by someone who died? It would be a dump routine if no input is made, it finds a price and dumps. It might be safer than leaving the account in a will. anyone think that 30k dump is caused by bitpay ? I guess some guy bought a luxury villa in manhattan
No, it was placed immediately after it fell below 300, similar to the manipulation tactics of old. If it was bitpay, it wouldnt have been a round number and it also wouldnt have taken the form of a wall, but rather a massive dump. Are you sure that the bitcoin was converted for the villa?
No, it wasn't placed after it hit 300 but that wall was actually dump to $300 and seller already sold 3-5k with that dump. Then more sellers and stop losses came and pushed price even lower. That wall managed to reach sub $300 price, becacause above $300 were nice walls before dump. Just saying, maybe everything was manipulation... probably.