We’ve been watching the Flickr discussion boards blow up lately about the banning of photography in supposedly public places. One user has posted in every D.C. related group with his recent story, and another user, katmere, has had so many confrontations with police and security guards that she started her own group last week called DC Photo Rights, where folks are asked to “[p]ost photos that you took in ‘banned’ locations, or photos when you…