With my account on that site, I could see posts from other Kbin instances like fedia.io. I could even see posts from Lemmy instances like Lemmy.world. In some situations, I could even see Mastodon posts.
People can also subscribe to Peertube accounts and comment, like this one.
People can also subscribe to Peertube accounts and comment, like this one.
I am a big supporter of Peertube it is a really good concept