I can't stand no photo rules. Not a bit
They don't save a single child from abuse.
They make us parents start fearing things that are way out of proportion to the risk.
They stop parents from saving a cherished memory, yet there is probably a CCTV camera that captured it and we have no idea who looks at those.
It makes us more likely to be suspicious of each other, which may prevent people striking up conversations and building relationships, which are the basis of civilisation. Much more abuse has been stopped by people who know each other spotting something wrong, so anything that works against social cohesion is a danger to children.
So in short I would go so far as to say that the current way of thinking about poolside photography or playground photography, or school nativity photography, is so backwards that it actually endangers children more than protects them.