Those are typically pretty easy to maintain in several pages of replies. The niche-based topics are a bit more challenging to turn into several pages without the discussions going off topic or turning into one liners.
There are some forum users and especially owners who are chronic with using a one liner replies or even just one or max two words. This annoys me like hell.
Yeah I try to avoid that.
One of the interesting perspectives of Discourse is that mega threads usually become tangents of conversations or status updates.
I've seen your one liner threads. It's more like an inquiry to something which you don't have to say too much because you're looking for more information from others on the subject.