$500 is not such a small amount for some people, but maybe you dont see tips that high so often

So let me see if I understand correctly, you are using your Stake account for accepting tips from other Stake customers, and then you later exchange coins you received for different coins, with small fee.
Yeah, I wanted to still keep it a bit high, but usually exchanged amounts are smaller than that. Above that it makes much more sense to use a "real" exchange

Yes, it receives tips, and sends back in another currency. When balances reach or drop to a certain amount, I deposit or withdraw, keep it balanced.