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?
For a moment, I thought you said Satoshi Nakamoto left an exchange website.

Anyway, I always had a few hundred satoshis left on exchange website because I cannot withdraw them (insufficient fund to cover the fees). It is dusts though, but I'd love to withdraw them if possible.
Well, if I want to withdraw those satoshis, I'll do it another time when I want to withdraw my coins from the exchange website.