However, it needs to be hosted somewhere.
...and if I'm going to be using a hosted service, I'd like the ability to easily pay for it (so that it doesn't eventually collapse or resort to shady things like ads), either though donations or microtransactions for bandwidth/storage.
Unfortunately, there's no good microtransaction service.
Wasn't Mozilla working on one? Where did that go?
...and thus, we've gone full circle.
And I'm typing this comment in a Chrome browser, because my company is migrating away from Firefox due to "security issues".