It's a UX issue, github needs a "thumbs-up" button
What's just as annoying is that as far as I'm aware, he has never admitted that he's been wrong about anything. Ever.
single line filter evasion text here
Instead, you would have to add a line that either gives more depth to your opinion (why do you think it would help?) or that just serves as use,es filler. I bet many people would opt for the latter, as it is easier to write.
Unfortunately, I don't think we have technology to measure the amount of content in a comment.