1. A person commenting or responding to a video like they have a long history of video editing and video technology systems.
2. A person who comments on a video with nothing more than one or two words that give no praise, criticism or any useful information.
3. A person who comments on new videos with 'First!" without actually being first, or getting lucky and getting the first comment.
4. People who have arguments over comments or video responses. These arguments usually amount to nothing.
1. "this video is completely fake!!!1 you can see the matte lines and the resolutions between them don't match!!"
"Ugh, not another YouTube Person"
2. "What shit!" or "Lame" or "Cool" or "Awesome." says the YouTube Person.