As somebody who doesn't regularly interact with aviation I don't have an intuitive understanding of knots and feet so to me it is helpful to have these translated to units that I "understand".

I’m flying an ultralight in Europe and my IAS is in km/h. And to be frank, probably all UL and PPL aircraft I’ve seen nearby use km/h, not knots. Not sure why it is so, but it’s definitely easier for my brain. :)

And we’re talking about it Hackernews not on Avsim or aviation herald. People here would better understand in a language they know.

Entire countries-worth of aviators are irrelevant?

Still, helpful for the large majority of people who are not pilots.