Yes, with some asterisks. Mastodon users see communities as users. for example, they see this community as the @Mastodon@lemmy.ml user. If they tag that user in the toot, then the first line of their toot is the title, second line the link, everything after that is the body. Then it'll show up in that community as a normal post.
Can we search their hashtags somehow?
No. If you want both link aggregator and microblog functionality, use Kbin. It offers both in one.
Can they comment on this post from a Mastodon client even though I posted it from wefwef while logged in at lemmy.world?
Yes, as long as they're following the community "user" and see the post. They can then reply to that post, which shows up here as a comment.
I'm assuming you mean Lemmy getting microblog functionality (this is a link aggregator). I don't think so? It's not on the roadmap, I've not seen any feature requests like that on the github, and people don't seem terribly interested in writing the code for that.
I personally don't care about microblogs. Never used twitter or mastodon, I'm much more interested in following topics than people.
I mean, there does seem to be the case. Look here :
https://vlemmy.net/instances
But I don't understand how... the structure of lemmy is more like reddit and mastadon more like twitter so I don't understand how they'd interact
that inspires more questions. I’m expecting a superstar app to rise up and meet the challenge of wrapping all this madness up into a smooth experience that doesn’t require programming skills to take part in. We’ll see what this Sync app everyone is talking about does. I’m fully supportive and trying to get my mates over here from Reddit et al., it just need to be explainable lol
so that was fun to watch. it looks like Mastodon is further along in development, then, and is uber-capable unlike lemmy atm. This gives twitter refugees a little advantage right now over Reddit refugees who are currently app-hopping from one alpha to the next. They’re more used to that format. That’s ok, I like it over here better (plus I’m trying to fill the Apollo-shaped hole in me, as another commenter put it) and I’ll wait for the inevitable functionality that I’m after