I would argue that feddit.uk is still registered under someone's name, and that the server is owned by someone. If that one person wants to sellout X years from now, they fully can
Ehhh… if you mean one can port their post and comment history to another instance, then, no [1][1.1]. If you mean one can port their account settings to another instance, then yes [2][1.1].
References
Title [Issue]: "Allow instance migration for communities and users" #3057. Author: Popkornium18. Publisher: LemmyNet/Lemmy. GitHub. Published: 2023-06-13T05:37:30.000Z. Accessed: 2025-02-08T02:35Z. URI: https://github.com/LemmyNet/lemmy/issues/3057.
The main point is being able to still access all of the communities if your admin goes rogue (similar to what Reddit is doing). That's possible on Lemmy, you export / import your settings and you're set.
Keep the same username, add a link to your new and old profiles and the bio, and you just moved instances. You may have lost your comments history, but there is no karma anyway, so why care? And it's still accessible on your old account.
I think the issue is that there's choice. People want the simplest, most streamlined route.
If there was one signup that in the background picked your Lemmy World based on signup questions (IE location and Subs you are interested in), plus a main app to go with it, then it would be more tempting.
Also, Lemmy also looks identical to Reddit which is great for people who want to decentralise. But to the majority of users...it's just a Reddit clone with a smaller userbase. Why switch?
Keep it simple, whilst introducing something fresh