There's no explanation about why the OP thinks the way he does. If there was some interesting commentary or question, that would be worth reading about.
Have you considered the same argument about your own post? Comments pointing out useless comments are just as useless as the useless comments themselves. Hence the voting system which isn't being engaged with -- which promotes or demotes the exposure a comments gets -- perhaps you might agree the right answer is to downvote and move on?