You don't say, is my signal boosting theory on the mark or only partially correct or ?
Ok I'll agree that bad things can happen by accident if someone's given the knowledge. But this is quite an old discussion/argument. However current history is saying that secrecy is far worse.
But back to base stations, the base station must be very vulnerable if its only protection from the "uninitiated masses" is secrecy. The RF world, from what I've learned, is steeped in secrecy. But it also awash with clever folks who like nothing better than to figure out what those secret signals are sending/receiving. It's akin to an arms race. Intellectual and physical (i.e. hardware) arms race and that hardware variable has largely been removed from the equation. Well the current method to keep the hardware variable in play seems to be expensive hardware with greater capabilities. Terahertz?
Back again to base stations.... They seem to be limited in what they can/can't do. And so far it seems to me that they keep the base station as simple as possible and improve the tech in the handsets. And they can always put boots on the ground if the "uninitiated masses" continue to do bad things against their base station, as a last resort of course.
FWIW I thought the GSM stack was fully understood by the "uninitiated masses" already. But maybe that's just the encryption part I'm remembering.
I also would guess that each carrier can do and does do things slightly differently then their competition at the base station.