Is RealSolid behind Mincoin? There is a MicroCash banner at the top of the page and a user named RealSolid in both the exchange trollbox and #mcxnow IRC channel. That might explain the huge block rewards for the early blocks.
RealSolid built/coded mcxNOW the exchange. After vircurex stopped trading SolidCoin a bunch of us SC supporters asked RS if he could build
an exchange to trade SC and future MicroCash. After the launch of MNC myself and a couple others talked him into putting MNC on the exchange upon opening and thus
he received the MNC exchange bounty, which he is actually giving away in the form of a "bonus" for opening/registering a new account at mcxNOW. Eventually
SC and a couple of other crypto-currencies will be added.