What if account banned for spamming or used for scam?
If you give your account details how you will ensure it won't used for illegal activities or sold to another person?
Well why not just straight up lend it out for scams? ...kidding.
It's a good point, this sounds like a viable business model, except you would probably need a deposit or something to make that kind of scenario less likely. I know OP said "no scammers" but that's silly. They're not going away because of a weak little sign you have up.