[jack_tripper]

>An OLED produces actual light

Actual light? As opposed to producing fake light?

[scary-size]

I think they mean that even an OLED display will actively emit light. When, in contrast, the e-ink displays shown in the linked posts are unlit. That, for me, is the key advantage making the device blend in.

[jack_tripper]

Turn down the brightness of the OLED and it also just "blends in".