Mark talks too much, and is just enjoying the new attention. I don’t follow sports that much, so I know very little about Cuban other than he is rich and likes to talk at people, aka preaching.
He really is the epitome of a moron that got lucky during the dotcom boom. He has yet to cut a profit running the Mavericks or the stadium they built. I am not sure he’s been successful since broadcast dotcom (which is a case study in the obscene overvaluing of the dotcom boom).
He’s also alleged to be a serial inside trader.