This place has roughly 3,000 people and was intended to be an entire replacement for DaystromInstitute and StarTrek as they were going dark indefinitely. Well, within 4 days the moderators have walked back those statements and opened both subreddits up. I see no incentive for people to come to this website now and while a few may come here in the future, most people will go to r/startrek with 600,000 people.
Lemmy, Mastodon, and most all of the Fediverse use a protocol called ActivityPub, and this is why they are interoperable. It’s a really cool technology!