I most heartfully agree.
I used to suffer from a really bad case of have-to-have-the-last-word-itis.
Then I started getting bored with the situation. Like there has to be more to life than staying up all night way flame warring with an innocuous flea that you won't even remember in a month or two even if they're still around.
So I realized it isn't worth it. I have trouble enough keeping up with my notifications, so why do I have to reply to everyone from some wall clinger?
Plus the fact is, it bothers them even more when you just leave them hanging. Worst thing you could do to to them is ignore them. Why, just this past morning, I got a notification from someone, but it wasn't worth answering. It was just silliness from some attention seeking cud chewer. 4 hours later, I get a notification from him again, with the exact same reply. He had deleted his first one and replaced it with an identical reply. Why? Because I never replied to said reply. How lonely can anybody be, that they have to spam for attention?
I can understand some people getting pestered by these chaos vampires posting for 3 rubles per comment, but so what? Let them say what they want. Ignore them. Who cares what they say, nobody's going to remember any of this crap by the weekend anyways.
I used to not even vote memes with disabled comments, but some are by people I like, so I feel bad and I do it now. Usually. If they're going to comment on other people's memes, they shouldn't have an issue with others commenting on theirs.