For example if you go on a free energy video or a water powered car video you'll notice that normally none of the comments explain why it fake. This is normally because the author is removing the comments that say this (or simply having all comment have to be approved first).
This means that as people read through the comments they get a really warped sense of what people are commenting where they think all 1 million people who viewed the video thought that the video was legit. There's no way to tell if a video's comments are being deleted or have to be approved. Sometimes I might right a long comments just to see "waiting for approval" when I post it. At that point I know the comment will never be viewed by anyone...
If you Follow Bill Nye or Neil deGrasse Tyson, putting them in a Science circle, for instance, and they comment on a YouTube video, you'll see that at the top of the comments.
Those free energy, perpetual motion, water powered car etc... etc... videos aren't scientific. They're religious in nature and when you challenge their beliefs, they will respond in kind as if you've questioned a miracle.
But really, I don't think it's a good idea to stop uploaders from pruning their own video comments. That could have other repercussions so, let them censor logic all they want.
The solution to these videos popping up is to make videos of your own explaining in detail why they can't work. Call them "The truth behind free energy" or the like. Bill Nye and Neil deGrasse Tyson are already famous and they will have an audience. If you cultivate your own, you can properly make a stance.
Fight fire with fire, as they say.
The ability to comment is provided along with the method of voting them up/down and hiding them.
Do you really think that forcing a G+ account to comment will make things better?
I had a similar thought when our local paper started using Facebook accounts for comments. My thought, "If people use their real names ..."
It didn't happen.
Stupid people will post stupid things. It's up to those who want valuable comments to weed through them.
I wasn't talking about stupid people posting stupid things (although that is a distinct problem). This is about trolls posting provocative things specifically to provoke drama and outrage. What is entertainment value for trolls is noise to everyone else.
You are entirely welcome to have a YouTubeVideosSuckAndWeMakeFunOfThem.com. That doesn't mean Google must host you.