Replying from Mastodon, just for giggles. As far as I can tell, the feed for this /c is just a random stream of unthreaded comments, sorted by when they're posted, with no indication which post they're actually referring to.
I'm not even totally sure if you can even create a new post (and I don't want to spam the sub trying).
So, yeah.. it's possible. But by no means an ideal way to do Lemmy.