Maybe he just created another account? Probably we will never know.
2 days left for end-of-month crypto price bets, last weeks are so stable that it is almost strange/suspicious

If BTC will not change it's price suddenly, it may give safe 40% gain (current odds are 1.49 for $17,5k - $20k). Second range is 20-22.5k, with odds 3.17 - it would give a nice return, but I do not think we will leave the current range around 19k.
The odd for the range 17.5k$ to 20k$ is not super high, but chances are pretty high that we will end up in that range. For more than 1 month, the price has been hovering between 18.5k and 20k (and something just above) so it is worth a (small) bet.