Your voice carries far more than mine when it comes to convince Adobe. That being said, I'll drop by their site and submit and enhancement request or something equivalent to this.
That is always helpful. I suspect the team is looking for more and more useful input for the next versions.
I just can't grasp the concept of Collection and end up using LR as an image browser... which it's not!
Do you use iTunes? Think of a playlist. One song stored in that library, but the ability to have it show up in dozens of playlists you build. That’s all a collection is. A dumb collection. Smart Collections are way more useful. They build their content based on criteria you specify so once built, you sit back and watch what shows up in each ‘smart playlist’.
And no reason not to use LR as a browser as well.