ok, i think the market has been indeed got affected by people who charge low. But if someone offers low rate and very good work, as a client, y not right? If you look at the other side, if the photographers that are charging low knows that they can charge high actually, why would they not do so?
i believe it is not an easily solved problem but it takes effort and money to do so. Maybe CS might soncider rating the photographers and promote this rating to the market as a benchmark for pricing. Helps the photographers and clients also.
Just my 2 cents of thoughts.