As far as not wanting to leave lemmy.world, you can’t see life through their eyes.
Me personally, I’ve decided to stay, but only because my top priority is having an instance that won’t be gone in a year because they have 6 users, and the admin doesn’t want to pay for an instance no one uses.
If I could find a stable instance, with no threats of being shut off ever, that doesn’t defederate with anyone, I would go there.
The OTHER reason I don’t leave is because Lemmy isn’t ready for prime time. I’m on Lemmy.World, which despite the intentions of Lemmy, is essentially the centralized hub. And one of the biggest reasons I don’t leave is that if I want to create a new community, I CAN’T do so on any other instance besides my home instance.
This means I can move to a less populated instance, create a community, and nobody will see it.
OR
I can stay here, create the community here, and it will get seen more often by people browsing by local. Or exploring what communities this instance has.
But I suspect eventually you’ll be able to give instance admins the ability to allow non-local users to create communities. And I suspect the norm will be for admins to allow this. This will allow Lemmy to grow, and maybe users will spread out more.
My biggest reason FOR wanting to leave Lemmy.World would be to be on an instance that doesn’t defederate from ANYONE. I’ll choose what content is offensive to me, thank you. Which for me, is next to none.