Is there a reason why the developers chose to route the Bisq traffic through Tor over I2P or why not to use both on top of each other? Would it be viable to use both?
I don’t think devs are that familiar with I2P.
Tor is significantly more popular and well known, so I think devs already knew how to integrate Tor into Bisq.
It would take some dev resources to add I2P, but I am sure everybody would be glad to have it as an option. But it is rare that we find somebody who knows more about it.