First of all if he didn't care about bitcoin and he believed half of the things he has been saying about bitcoin, he shouldn't have even bothered talking about it. Would you talk about a topic that you don't care about at all? lol

Secondly, the number 25 may have some significance in my opinion. It could actually indicate that he has invested $25 million into bitcoin and is one of the biggest whales today since I believe he bought bitcoin years ago when it was a lot cheaper and he was calling it "rat poison".