I can see how this thread might be educational, some of it. But otherwise, myself, I would not want to watch parrots/birds or any animal, for that matter, getting abused or mistreated.
A good purpose would also be to post comments on youtube on their videos, educating them of the dangers to birds of whatever these things they're doing to them/with them, as a goal toward an effort to get them not to do it anymore. - especially for the birds' sakes.
Yes, regarding human saliva, that's also why they say do not kiss your bird with your mouth, or be very careful with tightly closed lips, making sure no saliva is accessible at all, or your nose to their nose cuddle kiss type of thing. The normal bacteria in our mouths/saliva, can kill a bird. They can get bad infections.