Long form speakers often do so to obfuscate the content. It's a hiding place.
The only long form I read is fiction.
No, it's a criticism of people who make cheap shots in comments.
Again, if one doesn't have the patience for reading something, that's fine. But just walk away from the article, don't proceed to comment on something one doesn't have the patience to read. That's a disservice both to the author and to the people who did read the text.
"There's too much stuff to read on the internet" is a reason to walk away. It's not a good reason to stick around and comment.