I was really digging that western/gunslinger idea, too.
Here's the thing, even if they have something similar planned it still isn't the same thing. Look how many mafia/mystery games there are on here, does that mean we should narrow all those down to one or two? No, because different people will have different interests.
Also, why should it be up to one single person if an RPG or game gets made? I think it should be decided via vote(other forums I go to operate this way, and it works pretty darn smoothly), this way you know if there is general public interest in the idea to begin with. If it's a good idea with supporters it floats, if it doesn't get enough people behind it then it sinks.
This is in no way meant to be disrespectful towards anyone, and my apologies if I'm coming off that way. I just really don't get these methods.