Has it happened in DCS in the past? I know of the instance where an Eagle Dynamics employee got nabbed due to possessing documents but I don't know of an instance where a community member has posted docs publicly.
ED has clamped down on it. Now if you post something and can't prove it's from an unlimited distribution source BigNewey will delete your post pretty much immediately. I typically see that stuff on community Discords where the volunteer mods have a longer reaction time.