Threads is exactly showing the biggest problem with anything Fediverse. It’s simpler for the user so it will be accepted. The amount of people I’ve already seen join is huge compared to mastodon.
Lemmy doesn’t need to be #1 in popularity. I’d prefer it to split and maintain a higher level of quality, even if it’s smaller as a result. Even if Meta can grab data either way, it should be disconnected on principle.