Continuing the discussion from When do I get which Item - A reference:
For the length limit, there is indeed one default of 32000 characters, which can be changed - not sure if there is an upper technical limit there, but it probably doesn’t matter. The folks behind discourse are really, really very detailed oriented and way specialized into the topic of making forums, unlike the vast majority of programmers.
As for organizing multiple sub topics with multiple posts, I’ll have to agree with you. I’d still not reserve a post, but I think multiple consecutive posts should be a feature.