Maybe at some point we make a rule that makes all other rules (not including itself) permanently immutable, so that we have to take at least two steps to screw someone over like that.
But anyway, I agree that keeping points secret is not the best solution. It's a lot of work to implement, and either it doesn't accomplish much, or we have to add a large luck factor. What I mean by that is, the less random scoring is, the better we know other players' scores, which defeats the whole purpose of keeping them secret. The only way we can really make the secrecy significant is by making the randomness greater, which adds more luck which I don't like (I don't mind some luck, but a lot is bad, and we need a lot to make secrecy significant).
If we really wanted to do the secret points thing, here is a rough approach that we could take. Players bid on things that score points. Players post their bids in a QT (I assume QT's give a time stamp so we can check that it's legit?). At any given time after point X (maybe after X things have been bid on), a player may post "I want to end the game". Then everyone reveals their QT's (so we can check who won each bid) and whoever has the most points wins (or scores one legacy point). I guess it would be hard to verify that at no point in time a player had less than N$0, but maybe that could be part of the game. If you dip below N$0 but manage to bring yourself back by the end of the game you're fine, but if you finish the game in debt, you lose (even if you score the most points); it's an option to take a giant risk. Man, I didn't think I would like this idea when I started typing it but now I actually like it a lot.
So the "things" that score points might just give flat points, or maybe they say like "worth 1 point per tile of land you own", or "worth 1 point per N$100 you have at the end of the game", or whatever, so that they're worth varying amounts to different people.
I don't really know what this means for liopoil, I don't think I would vote for his proposal as it is right now. I think he is obligated to maintain "the spirit of his draft proposal" though (unless we repealed that?).