Nintendo

That's a very interesting point. Recently vlemmy.com shut down, and all the users can create a new account on another instance, but all the communities have just gone.

(Well, technically they exist on other instances, but since the instance hosting it is gone, anything posted now will not federated with any other instance.)

There are plenty of instances that have staying power due to how they are run. In fact I would say that lemmy.world had the most stability/technical issues out of all due to it's size.

Yeah, it goes against the grain a bit, but I like a bit of centralization. I don’t want the entire site to be centralized, but I like big communities. I’m a big formula 1 fan for example, and it’s just not helpful for me to be in ten different small f1 communities here. I’d much rather there be one big one that even remotely approaches the quality of the f1 subreddit.

This was a large consideration I made. Lemmy is still very early and total users are still miniscule compared to something like Reddit or even Mastodon. So I believe concerns over centralization or decentralization are a little premature. But I understand and share in the concern.