A quick history lesson; KRAB was a station that operated from 1962 to 1984 on 107.7 FM. KRAB was a complete outsider in Seattle radio, an independent public station that served not for ratings or any particular mass appeal, but KRAB was an outlet for anything no other station would be caught DEAD playing.
In many ways, KRAB laid out the programming template for "community" public radio and LPFM. To give those without a voice on the airwaves an outlet for their views and their music. Having a 100,000 watt signal from an ancient homebrew FM transmitter long past it's functional life (Kelly and the other longtime engineers here can give you the inside on that) KRAB had very few listeners. They never had ratings and they were perpetually bankrupt financially. They only existed to be an alternative to anything on the airwaves. And that, they most definitely were. You could hear Yiddish polka music one hour, reggae the next, hardcore punk, UW lectures, performance artists and anything you simply would NEVER hear anyplace else on the Seattle radio dial. Eventually, the station went so far into debt, they had no other choice than to sell their frequency to a commercial broadcasting corporation in 1984 and after seven years of soft AC and oldies as KMGI, they became KNDD. You can find more on them here plus hours of vintage KRAB audio for your listening and dancing pleasure: http://krab.fm/
My point was if all these little LPFMs (which I always personally called The Revenge of KRAB) were consolidated into one full power outlet, you would have something like KRAB. Today, people in general are far more open to alternative points of view, unusual ideas and obscure music than they were in the '70s and '80s and a station like KRAB today COULD actually have a chance at survival in today's world than they ever could back then. And those LPFM frequencies could be freed up for AM simulcasts or HD FM translators. The problem of course, is picking a sacrificial lamb of a station for this. And of course, NO ONE wants to go there. And you will still lose your ability to DX. But in my view, it's the only way to give everyone (well, ALMOST everyone) what they want.
I see your point, and generally speaking, I agree with you. What I was saying was that, no matter if it was an LPFM or HD to translator, I'd rather have either a low-powered KRAB cloan or even the Slovick LP that's now on in Mukilteo killing my DX than a weak simulcast of a station that I can get 2 channels up the dial in full stereo. Whatever this unique signal is though, I'm not sure I care much.