Earlier quoted context omitted.
It's annoying enough (especially as a child at school, but not at all exclusively) to be colourblind and put up with 'so what colour is this' without people waving their phone around exclaiming about how it says you see things, thanks.
Sure, but at the same time, it's a useful tool to show people how unusable their ui is using something they already have. The problem with “what colour is this? what colour is that?” is not the question, it's that the question comes up with an expectation of an answer, regardless of the context. If I'm _never_ willing to answer the annoying question, that makes me the asshole regardless of how poor my colour vision i…
Absolutely, but developers with that legitimate use for it can use the developer tools.