Lemmy is a far better platform for discussions than Discourse in my opinion. The tree like sub-reply threads in each post (the Reddit concept) is preferable over a single thread of replies. You don’t need to cross quote and for readers no need to read the quote to see who and to what the reply is about. I don’t like Discourse discussion platforms at all.

However, Discourse has a few features that fits well for a discussion platform. I like the tags and Trust system of it.