On Lemmy, I sure use it a ton between different Lemmy instances and KBin! On Mastodon I only use it to communicate across Mastodon instances really, but neither service would be the same without the ability to see posts from other instances.

I do! On kbin, if you set hashtags for your magazine /community then the Microblogs section is populated with Mastodon posts that use those tags.

I have a tiny community on kbin.social and I like going into the microblogs section and interacting with Mastodon people. It's just a fun extra.

I've also started following some of them, though I'm not sure how that part works yet.

Considering that the vast majority of comments on every thread (including this thread) are from users on different instances than OP, I’m going to answer: “literally everyone on Lemmy, constantly, and on every post”.

It sounds like what you meant to ask was more about interoperability between different platforms, but keep in mind that even if other platforms didn’t exist, Lemmy would not be what it is without ActivityPub federation.

I tried following lemmy communities using mastodon, but it wasn't pretty. everytime someone posts a comment I receive a separate post on tusky, without context (both the original post, or parent comment are missing) and I would need to click each time on a post to go back up the tree, mastoton and its clients need to do some work to improve interoperability with other platforms,

but unfortunaly the only platform Mastodon recognises and is excited about joining is threads. I have never seen them address the existance of other fediverse projects.

I follow lots of Kbin and Lemmy instances. And while I don't really have any interest in microblogging, I've had a few conversations in Lemmy comment sections with Mastodon users, so that's pretty cool.

I haven't used it at all. The fediverse can communicate with eachother, sure, but every website has its own ways of browsing and listing posts. Websites have to make a bridge to another website so you can actually interact with them in a way that makes sense, like how kbin has its own way to interact with Mastodon.

Unless someone makes a super app that lets you browse each implementation with one account, I think the Fediverse will mostly stay split with limited cross-app communication.

My mastodon account follows a few lemmy communities but I find the formats for each don't transfer well. I'll sometimes switch from one to another if I specifically want to make a retoot of a comment and direct attention to a community.

I haven't done a lot with it myself yet, but I have noticed that a solid half of the people who interact with my Pixelfed posts are coming from Mastodon. Probably because the hashtags work across the two? I guess?

If I'm right Lemmy devs haven't implemented observing others platforms yet. I mean Mastodon, Pixelfed and the others.

This post, I'm on kbin..

I also follow !risa on my mastodon

Do I count since I'm on kbin mobile right now?

I tend to use Lemmy most often just because it's easier to interact with Lemmy and kbin that way, but I have Mastodon, Lemmy, kbin, and pixelfed posts in my feed on my Calckey instance, so I can at least browse communities I'm subscribed to through there.

What would be nice is some way to sync subscriptions and blocks across platforms and between instances. I'd probably be using my own instance more often if that were a bit easier.

I don't, i have seperate accounts for each one because I have different uses for each one.

I follow a couple small communities on my mastodon account. But the truth is that there's different use cases between that and lemmy, so it isn't ideal.

Using lemmy directly will give you more control over the post and lemmy specific features...

Some content from Lemmy I prefer to consume on Mastodon.

@Venomnik0@lemm.ee I use it on couple, I find looking at Lemmy post on Friendica to be much better compare to *key (the one I'm on right now) which mainly is the formatting.

Otherwise, this is what it looks like on *key's end and it not bad but definitely not as ideal