Predictability matters. The whole point of paying someone else to handle a problem for you is that you don't have to worry about it. If you go all in on a provider and then suddenly find out that you've been switched to a paid plan in the middle of your vacation, that's not a place anyone wants to be. Saying there's no lock-in is nice, but that overlooks the fact that there most definitely is friction. What if there's no mass export? No mass import? Or you need to reset 2FA? Or etc, there's a thousand things that can shoot you in the foot, especially if you have a lot of services you need to migrate.

For personal projects, I'd rather just pay $2/month and not think about it than get hit with a random bill and scramble to migrate before the next month's bill. Bunny is perfect for this use case where you have a handful of projects that aren't all actively maintained. It just works without hand-holding, and since you're paying for the service, there's no rugpull looming.

I didn't downvote it, but I don't think migrating away from Cloudflare workers, R2, D1, etc., isn't going to be that easy. Basically, the build these things from the ground up to work optimally for their infra - even the mental model that you have to use is different. If you only narrowly use one part of it, maybe.

I used to handwave cloud portability. Turns out when you're shipping things and need extra services and you have deadlines, you build against the platform. I think the GP comment was probably expressing wariness of the free cloudflare tier that entices you to build against their APIs and their product shape in a way that inevitably locks you in. Sure, you could migrate, but that's expensive.