I enjoy taking photos at gigs but I like using the light that's there to take photos of anything. I will never understand why so many venues back-light but don't front-light. But it does make for some decent photos.
The problem with a lack of front-light is it means photographers bring their big fucking flashes and stick them right in people's faces, right at the front; blinding performance and audience members alike. Because they simply must have their shot for Instagram.
I realise there may be some perceived hypocrisy here but I never use flash and I try to stay out of the way so my conscience is clear.