No one? Me. And not only do I think he is bragging, but he is making a fool of himself, this is the umpteenth case I have seen in almost 20 years of forum experience of someone bragging about timing the market, because that is what he is doing, just before the market turned in the opposite direction of his move.
Well, it does look like bragging; even the title implies that "Who's laughing now?" which is directed towards the people who looked down on him when he proceeded with the Bitcoin. Although I don't blame him for bragging, just don't claim you're not doing that.
Anyway, congratulations to OP. I'm happy that things worked out for you. I also believe that it's a great feeling to shut the mouths of those who doubted you. So, don't feel bad if you're bragging about it; you're simply proud of your achievements. A lot of people also doubted me and made fun of Bitcoin and cryptocurrencies several years ago when I was discussing them, but I bet they wouldn't do that now.