It's very baffling. I often wonder the same exact thing.
The same reason women get breast implants: what you have might be fine, but what you put there INTENTIONALLY can be PERFECT.
But yeah, that shit looks crazy when they wash their faces. Even crazier when they get the eyebrows tattooed on.
This is my favorite youtuber, by the way, because the makeup is basically spackled on and her voice is SO annoying. I LOVE IT. Can't stop watching. Oh my god, her voice is killing me [watches more]
EDIT: HOW DID I PICK A FUCKING VIDEO WITHOUT HER VOICE? Hold on, watch this instead...