I see plenty, all following a very simple formula & mostly spoofing the original uploader. And those comments stay around for quite a while. They really need to

I see plenty, all following a very simple formula & mostly spoofing the original uploader. And those comments stay around for quite a while. They really need to improve the system. Not that there is much value in the YT comments, as you say, I just think it reflects badly on Google that they can't keep these comments out.