Hi,
I totally agree, it is not possible to see a guest photo anymore until they have booked and also, you have to add it as a requirement in your listing to add a photo. Because Airbnb decided that guests don't have to have a photo anymore, Airbnb will not stand on your side to request the guest to send a photo either!
Airbnb changed things to favour guests only, but it is us, hosts, who are penalised!! We give guests trust, we open our homes, we check them in at night time sometimes and we can't even see the face of the person we are opening our doors to?
I hope there will be loads of hosts feeling uncomfortable as we are; maybe something will change!