"Now MicroStrategy holds about 138,955 bitcoins" - That's a lot of Btc lol

Having such control over the supply might not be the healthiest thing for the industry. Imagine if he decides to sell 10% of the supply owned, it might have a huge impact on the market - especially if there's no deep liquidity to absorb the selling pressure. On the other hand, he is free to do whatever he wants, that's the beauty of capitalism and private property.

Fun times ahead.