Only one of those posts remains now not yet deleted, and the user had some deleted yesterday for posting the same content on boards that were not altcoin related (I reporte one on B&H).
I doubt he’s trying to really get an answer. More likely performing a feeble attempt to pump the price, whilst contradicting prior thoughts on the exchange being used:
yes YOBIT is a big SCAM EXCHANGE they dumping coins and ban accounts with no reasons