Looking at the amount of bitcoin he bought from Binance, do you think that would be enough for him as a transaction fee if he withdrew it to his non-custodial wallet? I think his participation in this forum means he already knows about the risks of storing bitcoins on centralized exchanges but sometimes because there are so few bitcoins, withdrawals to non-custodial wallets not wise. Maybe he's waiting until he has accumulated a decent amount of btc and withdrawing them in 1 go to save on transaction fees.