I think what we see here is a case of putting your mouth where your money is.
Who is more honest: BTC advocate who has not invested in BTC, or the one who did? (Regardless of what you think about BTC yourself.)
Since BTC is at an all-time high, at the very least if he didn't believe in BTC anymore he could get out now without a loss. So he still seems to honestly believe.
Well... yeah.
If the title was "Why I went all-in on Bitcion" would that be less of an anomaly for you?