Am I missing something though: what are users worried about in terms of fragmentation that applies to Lemmy?
I think it’s that they don’t know ANYTHING about it, other than it’s a bunch of different servers that seem to operate independently. So they have no idea how the whole thing operates. I’ve been on Lemmy for about 18 months and I don’t know how the federation works for Mastodon or Friendica - I actually looked up Friendica the other day but just gave up after looking at the list of instances. I don’t know what it means to use a specific instance for Friendica, even though I know what it means for Lemmy. These people won’t know what it means at all.
I can’t imagine the engine being amazing when they start, but I hope they have the flexibility to improve the performance and reliability.