IMO it’s because LLM text doesn’t really say anything. It’s 600% more text and paragraphs for things that could be said in 1 sentence.

It uses 50 words when 10 would do.

I don't hate it if it's text I asked for, in which case it's also easier to glance through looking for the points relevant to the topic.

I hate it if the assumption is that I'm communicating with a human, and I then get hit with a wall of text that I have to decipher the context behind. I'd rather read the prompt then.