@timlocke You can migrate your account elsewhere. You don't even have to use what your ISP provides. However, the real point is that if your ISP provides such an account by default, that takes a huge burden off the servers currently providing them and normalizes Mastodon as the defacto open standard for social networking.

@timlocke also, if your provider allows you to attach a custom domain to your Mastodon instance, you can take that address with you almost anywhere (as long as your username hasn't been used by someone else on the instance you're moving to).