Witnessed a debate on Reddit about plates recently and it was pointed out that shotstop duritium plates do NOT carry any NIJ compliance and are therefore trash compared to the likes of Hesco and Hoplite and their 3000 dollar plates. Bringing this here as WPS carries and recommends shotstop plates, including the duritium IV which was the plate in the crosshairs of this argument.... @john Lovell, your thoughts in particular would be helpful here.

You've got a worse problem on Reddit than some of the plates I like -- there's threads on Reddit dedicated to a moral assassination of me. I was shocked a year ago to find such a den of haters all gathered together and seething at all we're trying to do. I started to jump in and set facts and stories straight but I ended up leaving them to themselves because, 'answer a fool in their folly and become a fool yourself' Biblical wisdom.
All that being said -- I know what they are saying on Shot Stop and I'm unphased by it. NIJ certification means you paid big money and went through a bureaucratic test to get a stamp of approval. You have to do this with every specific plate you'd like to certify. The young companies that gain competitive advantage through ingenuity find it hard to get these approval stamps like the bigger guys, even though their product may absoutely be able to pass those tests with flying colors. So Shot Stop, while 'tested to NIJ standards' doesn't actually have the 'NIJ test' on it, it comes down to do you trust the company making the claim or not? I've done enough testing of them personally thus far to be good with them.
I know Reddit will have all kinds of other hate on these plates and everything else under the sun, but there's a quick-ish answer to how I would answer Reddit. Then they would attack me like piranha trolls and I would get on with my life without Reddit ;)

Thank you so much! FWIW, I actually own the new Diritium IVs, purchased specifically because of your endorsement (in carrying them in the shop), and because heavy plates suck.... You're completely right, Reddit is a pit of vipers, this is a known. I appreciate you taking the time to address this so I now have something besides "you're a doodoo head" to say to these folks lol. Have a great weekend!