@Ninguem It is a kind of forum, but not quite as structured. The special thing for me is that it is part of the Fediverse. For me, it is a platform that offers a topic-centred access to the Fediverse. It follows a different logic than microblogging services like Mastodon, which are account-centred and in which the content has to be structured by the individual users via lists, hashtags, antennas and the like.
It is possible to interact with Lemmy content from Mastodon etc. and also to create posts in Lemmy communities (I’m replying here from #Friendica)). But with Lemmy account (which I also have) the content is of course even better structured. But it is not quite as structured as in a classic forum.
@President_Pyrus @SmugBedBug It is not necessary that everyone who uses #Lemmy has to be a Lemmy user. Thanks to the #Fediverse , everyone from Mastodon, Misskey, etc. can also participate in Lemmy content (also post in communities, just don’t create your own communities). For example, I am currently replying from Friendica. The circle of people is much, much larger, so it’s not a problem if Lemmy lacks people.
@Blaze @caos The federation between Firefish and Lemmy is problematic. According to a #Firefish admin, this is because Firefish requires “Authorised Fetch”, which #Lemmy has not implemented correctly. Here from Friendica it works fine.