I believe the CMs are listening, the devs just are not doing anything about it :)
I totally get how frustrating it can be to hunger for new information, and I also know how easy it can be to jump to conclusions when being in that state of mind., but I can assure you that the developers are working hard to make Diablo III a better game... there are many things in the works for future updates, and we will share more detailed information on these things when we are ready to talk about them :-)
First off we got 2 blue posts - already a great start for this thread :)
Secondly i would like to explain why we feel like no one cares what we say.
Many threads have been opened, many weep threads that don't deserve any attention at all, but some do really come up with real points which we do not get any feedback from anyone.
For instance the rollback issues, if this game had no RMAH I wouldn't even care if Blizz employees could create items. But if someone can take a $250 item and "fool" blizzard into giving him a rollback and now he has 2 of them - he is a thief.
Besides this it's also on the practical level, we bring up many ideas and out of the thousands that come up - many are crazy, (like some of mine) but some, even a very small amount, are really good.
In most cases those ideas get no attention and in some they get a blue post like this "yea sounds good keep up the great ideas" (makes us feel someone cares), and in the end.. we get an Infernal Machine \ MP \ doubled Legend or Set drops, which feels a little like someone wanted to push "new" content fast, but didn't want to put in the effort.
We all hope for the same thing here (the community), we hope for a better game.
So I hope those "super secret" future updates will fix the over inflated economy and bring back some interest in the Diablo franchise.
Again thank you very much for the attention and showing us that someone is listening :)