I've decided to use #lemmy (or to be precise, a TTRPG-specific instance) some more for discussing #ttrpg -related topics.
I mean, Mastodon is fine, but the very nature of the feed makes it difficult to keep long-term discussions going - an actual discussion forum like Lemmy is much better for that.
And thanks to the magic of the Fediverse, Mastodon users can contribute to the discussions there anyway (and so can those of most other Fediverse systems).