I already have a lot of satoshis lost around several bitcoin exchanges. I can't withdraw those satoshis because they don't even worth the fees.
Like me there's thousands of others in the same situation which would make a lot of BTC. So I take it that exchanges keep these satoshis for them.
What do you think? Should exchanges be responsible for the fees and return every satoshi to their owners?
Good question. If one Satoshi would ever become valuable then people would deeply regret keeping even a few satoshis on an exchange. There would be no recourse because I am sure there is an agreement made when using the exchanges service that there is a fee. Maybe if exchanges had a pop up, prior to depositing, that there is a withdraw fee because for some you dont know until you have to withdraw.
If one bitcoin is worth $1,000,000 someday, and you have 1,000 satoshis lying around in a bunch of different accounts in multiple exchanges, you will have lost $10.