(Not about the policing part; oh hell YES I do that. Words mean things, and that goes double for technical terms. Quit trying to confuse people!)
* years of painfully working thru the problems
* months of painfully trying to figure out how to talk about them
* stumbled over the definition of observability in the mechanical engineering sense, had my mind blown
* spent months working out the ramifications -- what properties would a software system need to have to be observable?
.... and then we built honeycomb to that spec.
Because you are all on the verge of running into this problem. Where your unknown-unknowns outstrip your known unknowns, and it's high cardinality turtles all the way down.
or we don't, and we waste loads of time on voluble descriptions to try and avoid our eternal, ever-present confusion.