The sad sideshow was the 1992 parlimenatry coup led by Wałęsa
Why do you glorify a simple vote of no confidence (for the most incompetent government in the immediate post communist period)?
there would have been a year or two of mayhem
which Poland could not really afford at the time time
it woudl have made it possible to sort out who as a paid informer had actually hurt others, who signed something but never snitched and who did neither but was framed
Just how do you think that would have worked? There is no evidence possible that most people would accept either way.
The big problem is that there has never been any political will to use the files for any other reason other than to hurt political enemies (regardless of what they did or didn't do in the communist period).
Communism was actually a lotmore.... soft in Poland than in some other countries in the region. At the time it made life more liveable in mnay ways. The cost comes after the fall in that it's much harder to sort through the mess and figure out who really needs to be punished...