Just a few points that come up to mind when reading this thread:
1) Majority votes will hardly ever determine what will be changed in the game. As some state above, I have a fairly clear idea about the concept behind the game and if I were to follow all majority suggestions, I would probably end up with a game much more like the hundreds of other games that already exist than when I follow my own ideas. It is, indeed, about keeping the integrity of the game.
2) I would like to add that also from a volunteering perspective, this is kind of important. If you were all paying for this game as a customer and I did this as my fulltime job, I would be more responsive, probably. But this is not a customer-supplier relation, but me as a volunteer - and many other active volunteers - writing the game that I like to write and that I want to play. I don't spend so much time on this out of altruism, but because this is the game I want to play and this is the kind of game I want to develop.
3) Polls on the forum are still very important. They give staff a quick impression of what the general mood is on an issue, and that is often taken into account, even if it is not the crucial factor in taking a decision. Please keep using them and please keep voting on them, because it is still useful. And I do definitely read all polls.
4) In relation to that, though, I must admit that I do not read all lengthy suggestions. There are sooo many. If I were to read them all - which would definitely be the best thing to do - it would take me hours a day. I find that tiring, and it would definitely keep me from doing any development

... Polls work better than lengthy explanations, in that sense - the lengthy part can come after a decision has been made to implement something. (It is still fine to have those amongst yourselves, and we have enough staff around that can alert ProgD when a really good idea is discussed, but just to say that polls are generally more effective in getting attention.)