I think I recall that incident, and yes it WAS quite a while ago. Plus, if it WAS a legit incident, the guy wasn't "OCing" PROPERLY, as a gun sticking out of a BACK POCKET (and not even in sight of the OCer) is just plain stupid. So I don't consider that guy as your typical OCer -- he doesn't AT ALL represent OCing, and therefore not any "evidence" that OCing is a "poor way" to carry. Further, they would consider this incident as "proof" OCing of that.
Personally, my handgun ("Plan A" for personal self-defense) is OCed "cross-draw" very close to my belt-buckle so it's right in front of me (and in-sight!), AND the OWB (polymer) holster has Level II retention. PLUS, I have an EDC knife (one-handed/instantly deployable, usually "Plan B") to "repel boarders" should a gun-grab be attempted (as all OCers should plan for). In THAT case, the knife becomes "Plan A."
As for Concealed Nation, I DO visit it regularly as the criminal/assailant encounters presented there could happen to ALL/ANY of us -- CCers and OCers alike -- but the "red shirt guy" AND Concealed Nation itself is not "OC friendly," if you will (but they do "tolerate" at least ONE OCer there who posts regularly).
Again though, it just points to the FUTILITY of trying to educate OCCers, as they continue to dismiss OCing and only see it as something NOT to do.
-- C