@zebus It's probably not quite right to think of it getting posted to mastodon. ActivityPub based services communicate with each other. When I search for you on mastodon, your account here comes up, but I can't actually view the post because my instance doesn't know to mirror your posts (I'm not quite technical enough to know why services don't somehow "slurp up" the posts of a user you're searching for..). But if I followed you from mastodon, I'd see your microblog posts from kbin there.
@zebus It's probably not quite right to think of it getting posted to mastodon. ActivityPub based services communicate with each other. When I search for you on mastodon, your account here comes up, but I can't actually view the post because my instance doesn't know to mirror your posts (I'm not quite technical enough to know why services don't somehow "slurp up" the posts of a user you're searching for..). But if I followed you from mastodon, I'd see your microblog posts from kbin there.