Only from Mastodonians that put in the effort to post to a Lemmy community or respond to a Lemmy post. Still neat to see it working though.
If you're really interested you could try Kbin. It interacts with all Lemmy and Mastodon content.
That would be cool, never thought about that. Straight up not allowing voting from All/when you're not subbed could also be interesting as an experiment. But yeah, here plenty of people are just interested in Twitter news.
How about the people who stumble across the comm's posts on All but aren't subscribed? On Reddit you could also talk about the original user base from before a sub started hitting r/all but !technology@lemmy.world doesn't really have an 'original' user base.
You're about one step away from eugenics lol