Him being a billionaire doesn't change anything -- Mark Cuban is a complete idiot who's just trying to say or do things to gain himself some media attention. No one in his right mind takes anything coming from him seriously. I don't even understand why news sites are creating an entire article just for him -- are they that desperate to push articles online to generate some ad revenue pennies?
I think this is worth a news. Remember he was anti-bitcoin and he had said a lot of negative things about it. I think he was left behind by some of his billionaires friends who have invested early on. And during once of their chat he was out of place because his friends are talking about bitcoin. LOL. Then he went on a tirade because of this. Now, he's suddenly make a U-turn because bitcoin is now a game for the rich. He don't want to be left again and of course he wants to get profit as well. Greedy Mark.
Plus he wants to stay relevant in the news and he wants to talk about bitcoin and for sure everybody will listens.
I'm sure that someone like him would have invested into Bitcoin quite early. No matter what he may have publicly said, there is absolutely no chance that he would have missed an investment into bitcoin as soon as the possibility of it becoming a real currency appeared. I don't know what kind of personal issue you might have with him, but unless you have some sort of proof of anything of what you say, this sounds like random BS to me. Just because he has spoken against Bitcoin before doesn't mean he isn't allowed to change his mind. I am sure everyone at one point had their doubts about Bitcoin ever becoming popular or commonly accepted as an asset or currency to transact.