I’m starting to find some of the cooler aspects of the wider fediverse.
For instance, Lemmy is a Reddit clone that is picking up some migration after the recent hooha or at Reddit.
The cool thing is that it’s federated (same as mastodon, different instances and everything).
This means that you can subscribe to any community on Lemmy, for instance
https://lemmy.world/c/showerthoughts
through its fediverse address, right here on your mastodon instance:
On Mastodon, Lemmy communities show up similarly to how a regular Mastodon user does, and can be searched and tagged similarly. So in this case, OP tagged this community specifically rather than any others with the same name.
I believe if you try and tag multiple it only posts to the first community mentioned in your toot, but don’t quote me on that one!