HONESTLY
I would assume it all depends on how you look.
If you're a fat neckbeard I don't think many people are wanting to see that.
If you're attractive then a facecam would be nice.
A little vain but it's true.
I disagree, A attractiveness is subjective, and B I think it is more about connection to the youtuber - as in more connection because you can see their expressions and such. Might be true even for a fat neckbeard, as you say.