anti-youtuber
hey johnny, did you see that hate comment that someone can left on your youtube video?  yes, what an anti-youtuber
someone who signs up for a youtube account so that they can leave mean and insulting comments on other people's videos
"hey johnny, did you see that hate comment that someone can left on your youtube video?  yes, what an anti-youtuber" What is the definition of "anti-youtuber"?