Just do the arbitrage yourself, it takes more time but the profits are higher and you dont have to pay 25% fees like for profitcoins.
If you want to do this yourself without any experience you can also just throw your trezor (or ledger or whatever youre using) out of the window and burn your mnemonic sheet.
Best advice ever haha youre the real mvp

The idea behind it sounds legit and the team also so I think theyre safe