Just for clarification, this forum will not be removing members or deleting threads based on FAA guidelines. While that tactic may at first seem justified, when you think about it further, it turns into a nightmare.
First off, its difficult to judge 400 ft based on a photo. Secondly, how do you know if the pilot is standing at their window flying from 25 feet away but the Phantom is 500 ft. above the ground. And thirdly, the FAA guidelines only apply to the USA, so therefore, we would have to know the regulations of all countries and enforce those as well.
Obviously we encourage safe flying and flying below 400 feet, but at this point, we cannot regulate how people fly. We will leave that to the FAA.