I think, at first people must be self aware about what certain tag is about and if their category falls in the list or not. But there are many new comers (i am new too) who just want to post their stuff on different subjects and hope for some views or upvotes hopefully because they dont have proper knowledge how it works.
#Photography -meaning simple means to capture a photo. But it doesn't tell what quality, height,width,pixel the picture should be. I think the people who are already familiar with how the tags work and how its affects the content should interact with new ones and teach them the better way of doing it so they can produce quality works in the future. If i post something ther must be someone to notify that it doesnt fit the title or the subject so that i get aware and educate myself and others too.So people helping each others is a good option in my opinion.