I think, because it’s a new platform that most of us want to see succeed, everyone is far more active to ensure the communities get established. If there’s a couple of days without a post in one of the 3d printing communities I subscribe to, someone will post a random print they find useful or ask a question about a new filament to keep it active. This low stress discussion is great.

The 3d printing community on that other site ais great, but sometimes it feels like posts don’t gain traction unless it’s on a 1 cubic meter Voron that can print PEEK (translation: very expensive/unique). On the Lemmy communities, there’s more discussions on Enders and Anycubics (translation: most common budget printers).