I can still swing conversation posts so they're not just snippets of words and sentences. I'd like to think a couple paragraphs could still be given, considering all the other details and progress a post can make. It'll depend on context but at least from me, my posts won't be much shorter even with dialogue, plus it's not too hard to backtrack in terms of speaking from character to character but given more posts, it'll be easier to develop a sort of rhythm. ^^