But it exposes things on the Web. And if you don't like them you can move somewhere else?

And more generally: people do things for money. Companies wanting a profit is not a bad thing. That urge can go wrong, but that risk is mitigated, in fly.io's case better than most, by the lack of lock-in technology choices.

For example, if you want to, for some insane reason, build an application that uses Microsoft's CosmosDB, then your data is stuck in Azure forever. Fly.io doesn't have that problem, as they use things you can run elsewhere.

So: what is the problem, as pertaining to the topic of this comment page: fly.io?