Comment by munksbeer

A big part of this will be in-group signalling. Humans always do this, starting at the school playground. They adopt the habits of what they consider to be their in-group. It is why so much of the material (blogs, essays, comments on blogs, etc) come across as infuriating to the average reader.

In my opinion, verbosity is often used to swamp an argument, so brute forcing correctness. Just so I can swipe the ~~insult~~ critique more broadly, you often find the same on philosophy forums. You won't get engagement if you try to distil their arguments down to more concise points that are easier to debate or refute. You need to use the in-group signalling of lengthy posts, complicated language and appeal to authority.

(Just so you're aware, I'm aware, this is going to really annoy some people, nevertheless, I believe it is true).