Well,if there is a legitimate reason for a premium we usually don't call it "arbitrage" anymore. You kind of provide a service/a value by washing coins KYC-free after the exchange and get compensated for that - that's a businessmodel, not arbitrage. Might be a grey market businessmodel depending on your country - and maybe find out if your specific region even has a demand for it - but still a businessmodel.

tomlaies

bitcoin

Bisq arbitrage trading

Ah okay, I thought maybe this is frowned upon to do arbitrage trading like this. But now that you've mentioned it: Essentially, I am taking the risk to be investigated by the authorities.

And I guess that most coins sold there where bought on a CEX. Else, the trace of most coins on DEXs must never have touched a CEX (originating directly from miners) which seems pretty unlikely.

So arbitrage trading seems to be exactly the reason why it's trading at a premium?