I hate posts that are more than a few sentences long and I usually down vote them.
What is the basis for your thinking? Why do you down vote long posts?
Long posts mostly bore me.
You could just not read them. It's not nice to downvote something and upset someone else like that on purpose.
It's fine, I can do whatever I want, and I'm not a mean person.
People that make long posts just have something they need to say. You should not try to upset them for no good reason.