Wherefore did you stall in a 152 @ 30k?
I don't know about at 30k, but I know I can get it to depart flight pretty much on command in a way no other aircraft in the game does. If I kick too much rudder in a gentle bank, it skids, then the nose bounces and most of my flight controls get really mushy. It goes into a skid about 10-15 degrees off the nose, and if I don't immediately rudder into it to get the nose pointed the direction it's going, it destabilizes and gets into the really nasty type of spin/stall described in the OP. I've only had it actually go tail down once or twice, but far more common is the falling flat, often with very little 'spin' involved.
If memory serves, ruddering full to either direction and a lot of aileron rocking and elevator down varying engine power level got me out of it eventually. By far the worst stalls I've ever seen in the game.
Usually the only time it bites me is if it happens on final and I don't notice it immediately.
Wiley.