I mostly only use Youtube for music. I'm aware of some of these "vloggers" but for the most part it seems to be mostly people who think a webcam and a sense of entitlement will see them on a one-way journey to 'nuff respect. Alex Day is good, based on the fact that he was so thoroughly charming in those "Twilight" readings he did, and that Charlie fellah is okay, because he has good hair and and he seems likeable enough and also he's somehow got Stephen Fry on side despite doing nothing to deserve such an honour, so I can relate to that.
Mostly, though, I see a video I like and then I accidentally scroll down to see the comments and then I vow never to visit that fucking treacherous cesspool of misdirected bile ever again as long I shall live... and then I end up on there again and I die a little inside. Then I get over it again and the cycle commences.