I am never going to understand these sorts of posts, and I am going to explain why, in what I feel is a constructive fashion.
One, you shouldn't even be posting about the Fallout game. You're wasting people's initial excitement. Very few people are going to want to play the game by the time you actually finish it, because you posted about it months before it was ready and everybody already went through the "omg I would love to do <insert concept> in a Fallout setting!" and burned out all the energy they had to give a fuck about it. Or in the time between then and now, they will have found a new 'MU home'. You'll get a few people sure, but by the time you actually post an address for the game, the 'sort of, maybe' people will be past caring.
And then posting this sort of "haha I randomly thought about this and thought it'd be fun, what do you guys think, oh but we're totally focused on the other thing still" makes the whole thing seem super flaky, and tbh, makes it seem like not only is this Genosha thing never going to happen, but the Fallout thing probably won't happen either.
PSA (to everybody around here, not just Riz) : Stop posting about how "you're thinking about making an XYZ game" or saying you're working on a thing MONTHS AND MONTHS before it's ever going to happen. You're completely killing any "opening excitement" your game could have had. People stop giving a shit after a few months of seeing you post about your stuff.
If you want to make a game just go MAKE IT. You will be far more successful if, when you pitch it to people, they can actually log in somewhere and start exploring the wiki/game to maintain their interest. If they can't do any of that, they will move on.
The obvious exception here is The Reach-esque stuff that is just a giant "do whatever you fucking want, Shang-lite", those are always going to have players, no matter what. But these smaller, 'niche' games, you are shooting yourselves in the foot.