Currently a short term fix could be as simple as a new tag "photopro" to steer professional photography away from general photography.

The more the masses come to steemit the worse this issue will get and I think it needs to be dealt with in a way to help all tags as the issue arises.

What I love the most about Steemit is it's still new enough to find quality quickly enough....like Google Search was until it's bot's found all the random masses fluff and buried good content to sell add's.

Good luck with your goal, this is one of the best idea's I have seen since being here.