It's not only hardcap supply and when binance will be announcing another IEO and that will make mullion dollars of binance coin to be bought by the IEO participants. Remember if binance has BSC and so many BNB already locked on the defi on BSC. That was making less BNB coin in the circulation.
Binance has so many ways to earn passive income and capital gain. I think that you are still in a safe position and this time it's going up again.