Ahh yes, the grand conspiracy to suppress information about a headphone because it's SO much better than everything else that telling the truth about it would render us jobless/homeless...
I'm not sure if people actually believe this or are just trolling us at this point.
In case it's the former, let me just say that headphone ownership is a hell of a drug. People get deeply attached to the headphones they own, and it makes perfect sense that this would happen, given these are essentially enjoyment delivery devices in terms of how they portray your favorite music. So it's a very personal thing. However, sometimes the personal attachments people have to the products they own or even the brands of products they own lead to unhealthy relationships with reality, as they struggle to cope with the idea that someone else doesn't have the same experience with their favorite enjoyment delivery device. Or maybe that someone else has a different context for what constitutes 'good'.
Then you get people running to the forums, which function essentially as support groups for product owners, and this is where these sorts of conspiratorial ideas tend to propagate.
I will say, while this behavior is a common, observable trend, I don't think it's always a bad one. There's nothing wrong with people discussing stuff they enjoy, and sharing those experiences. I just think people may need to be a bit more self-aware in these situations, because the copium treadmill can lead to some dark places.
Now as to the NDH-30, when I heard it, it wasn't particularly memorable. But that doesn't mean it's not good - I'd love to get one in for review at some point. It just hasn't exactly been a priority given the mountain of other stuff that's on my plate.