It does worry me somewhat that Youtube allows stuff like this. I mean if people walked into a public library and put some books on the shelves of the educational section full of nonsense that would only serve to give people misinformation, then those books would be removed.
Over the years the amount of nonsense on the internet has grown and grown and grown, and the amount of people believing/spreading it has increased and increased, this is why you get the "OMG jet fuel can melt steel beams derp" and "chemtrailz is reel!" idiots. I think it's about time a stance was taken against the deliberate spreading of anti-science before we end up living in an idiocracy just because the intelligent people have learnt nonsense.