A potentially stupid question so I apologise in advance. Am I right in thinking that this community is sitting on a Lemmy-based server, but it just has an unusual name rather than the typical xxxxx.lemmy/lemmy.xxxxx format?

It’s a bit worse than that actually. I’m now seeing several communities with exactly the same name that originate on different servers - so clearly Lemmy doesn’t have a rule about duplication once you cross a server boundary. That’s going to get unwieldy quite fast particularly if, I dunno, “Aww” gets popular on two separate servers at the same time - I guess I’ll have to subscribe to both…