For this sort of creators the better part of interoperability is that they can actually *increase* their user base trough influx from applications they do not know exist.

Probability we need just a good UX to keep the users in the app, and a great interoperability UX to invite them to easily jump elsewhere.

And because usually clients' priority is not to let users go away, we need to build this good interoperability UX at protocol level. We can achieve this with rock solid specs and tools, paired with a great information layer, like you, @MaxDeMarco and @Gigi are doing brilliantly.