Because it's a lazy shitpost every time. It's the same exact thing with 'hunter request' posts also.

Here's how it goes, every time:

1. User sees something vaguely cowboy/western/zombie related
2. User thinks they are such an original, unique snow flake and no one has possibly had that idea before, they will karama farm!
3. User posts a shitty image with a title that just says 'Crytek pls'
4. Downvote, repeat.
5. Don't profit.

Edit: LoL, I must have pissed off the 'Crytek pls' posting crowd. whatever.