Ok, but I don't run a mint.
In fact, I was thinking about running a GUI somewhere, maybe a phone app, to let people start managing their debts in settle. At first I would use m.settle.network but later run a public mint for the users of my app, so that's not a solution for my use case.
Because network effects are so hard to overcome requiring everyone I know to register an account[1] AND mint multiple assets would make everything impossible.
[1]: I plan to solve that part by using virtual accounts somehow, keeping funds for users that are not registered yet, based on other accounts they may have on the internet, then later, when they register, they can claim these virtual accounts by proving ownership of them, somewhat like what Keybase is doing (I'm not sure they support virtual accounts, but I think they do, for their chat, for example).