It's hard to get contouring right. It takes time and practice and patience. And contouring is a little like learning to play the violin, in that you should probably practice far away from other people because in the time it'll take you to learn you risk looking like a complete goon. Some things should not be shown to people as a work-in-progress and bad make up is definitely one of them.
But that doesn't stop most people. Just like your friend who swears they're a good driver or a good cook, some people are terrible at contouring and insist otherwise. And they just keep posting. Over and over and over.
I guess all we can do is giggle at their total lack of self-awareness.