Edit: to clarify: the message in the ad is actually ironic/satirical, mocking the advice for cyclists to wear high-viz at night.
It uses the same logic but inverts the parts and responsabilities, by suggesting to motorists (not cyclists) to apply bright paint on their cars.
So this ad is not pro or against high-viz, it’s against victim blaming
Cross-posted from: https://mastodon.uno/users/rivoluzioneurbanamobilita/statuses/113544508246569296
Arguably, if everything is high-viz, then cyclists may just blend in between the cars and be overlooked again. It does make sense that weaker participants in traffic are more visible, as long as everyone else is also visible.