I think the problem people are struggling with is that it's a site created mostly for fun and delight, but the message is about "UX", which people generally think of as a way to maximize efficiency.
Products don't always need to be relentlessly efficient to be considered useful or "good". Some products are created for you to just enjoy.
Super positive. We love it.
Blows my mind. But that's the point - it's really like two very, very different ways of thinking about, approaching/creating and evaluating projects (in this case, a web site.) On one side, they have "an eye for design" that really appreciates this novel UI design, but on this other side, we have that eye for efficiency and... ahem... user experience. (Rather than how a designer might experience something.)
There's no pressure in the market to not value UX. Everyone wants and needs that. If anything there are pressures to only value efficiency rather than delight. Sometimes "fun" isn't efficient.
Everyone is taking this fairly seriously. I doubt HN is the target demographic for this sort of thing though.