KiddieToysReview
I Love YTtalk
I have seen several large channels use # now..
Ye, I've seen it too, but it goes back to viewer behaviour. I could be wrong, but viewers don't use # tags in Yt. They certainly use them in Twitter and Instagram, but not Facebook nor YouTube as far as I know. But, maybe that is changing, and people are searching for videos with # tags.[DOUBLEPOST=1507407739,1507407675][/DOUBLEPOST]
You have done good investigation detective KTR I will need to do the same for the channels on my field.
If a channel grows big quickly, I want to know why.