[mrweasel]

While blue LEDs are wonderful to have, I don’t get why anyone would add them to a product as an indicator.

They are annoying and typically insanely bright. Also, just because something has bluetooth, does mean that a blue LED is legally required.

[HWR_14]

When Mr. Akasaki's invention started making waves, blue LEDs were still more expensive. So a blue LED was a signifier of quality. They became more affordable, so everyone started putting them everywhere. And made them bright so you would notice.

Probably an analog is curving a 42" screen designed to be viewed on a couch across a living room.