That's exactly what I meant Gus: They are supposed to know better when it comes to their own history.
I once argued with them about a typical/obvious M15 Kürassier Helmet that was misidentified as a Jäger zu Pferde. They were adamant that their description was flawless and apparently even "Mr. Beck the long-time expert" himself was contacted and insisted it was JZP. I had to refer them to several sites including Tony's until they finally admitted I was right. To my additional surprise however, they never fixed that description! They also had helmets misidentified as M16 when these were M18 and vice-versa, not to mention all their Officer Pickelhaubes were M15 when these were mostly M97, and so on...
I was about to buy the Kürassier helmet but when I realized they didn't even know their own stuff, I started having doubts about authenticity.
Therefore, I also agree that this site is in the grey zone. Some of their stuff isn't always right...