Why post these random unsubstantiated claims on HN?
To show everyone the Gell-Mann amnesia effect in action.
When HN top karma poster and security professional posts something like this, doubles down, and can’t even be bothered to support it in any way (I’m open to learning and changing my opinion) it completely blurs the line going into social media influencer. Quantity over quality.
Just because they're exclusive about their clients doesn't mean they're not real. Their impact and effectiveness is a separate topic though. I don't think they're still actively operating or taking new clients, at least.
btw: "Oh, so you've done x?" What a snarky and confrontational way to ask someone something. Especially when it's asserting a well documented company and person is "not real".
I’m just baffled.