But surely if drivers have a responsibility to not crash into cyclists, you also have a responsibility to be as visible as possible? Yes, if you look closely enough at that image all the cyclists are visible, and I totally sympathise with the frustrations you have about shitty drivers and poor cycling roads. But I just don't understand why you'd consciously reduce how visible you are to drivers.
Wearing black with no lights is a bit of a dick move, but it's also illegal at night. In the daytime, if a driver cannot see a normally-attired cyclist, what chance do they have of seeing a normally attired toddler who's rushed out between parked cars.
There seems to be a trend at the moment for painting cars matt dark grey; literally tarmac coloured. Why on earth should there be any onus on vulnerable road users to dress up in hi-viz? That said, reflectives are absolutely a good thing, especially on shoes/pedals for nighttime and I personally like to wear tops in a bold (mid-blue/red/green) colour for daytime riding, nothing that I wouldn't be happy wearing into a pub though.