With the emerging popularity of combat sports like UFC along with the creation of UFC games that allows normal people to have a small taste of trained fighting, it comes to no surprise that people will want to emulate them. This is especially true in communities where people like to get into altercations with each other to prove themselves.
Regardless, having actual training and trying to emulate training by watching youtube tutorials and UFC are two completely different beasts. With one, you actually know what you are doing. The other, while it could possibly be better than being completely ignorant, you will still make lots of mistakes that could be fatal.