To be honest I like the idea of being able to move my account from a server which is offline to a different one. We should have it with ActivityPub too.
This is literally the attitude that will kill fediverse alternatives chances of competing with Twitter and Reddit. Bluesky seems to be on the right track by focusing on product first before introducing the complexities of instances.
I hate to sound negative, but right now growth in the fediverse (especially Reddit clones like Kbin and Lemmy) are being driven by people who no longer want to use Reddit. But over the past few weeks, most discussions are still circle-jerking about how bad Reddit is and how glad people are to be on Lemmy. You can only beat a horse for so long before you need other content posted on here to keep most people engaged.