[PavlovsCat]

> Sometimes a post can be short because a short post is all that is needed. E.g someone might ask me a question that the answer might simply be "yes". I would find it annoying to have to artificially pad the length.

> But longer posts should always be possible and the user interface shouldn't discourage them.

Yeah! For example, this is a node with two subnodes, one of which has a title and description and everything, the other just a body, so it gets a little permalink thingy:

https://i.imgur.com/tESzN5O.png

These are posts in a CMS and not comments, but the principle is the same. Just don't display gigantic things inline by default and there is no reason for big and small posts can't coexist.