There is also the matter of taste. Maybe I find dog portraits utterly pedantic. If I post something derogatory about you and your photography I might be expressing an opinion, or just maybe I'm a crank with really bad taste. In the meantime, you, being about a thousand times more sophisticated and sensitive concerning canines, delete part of your gallery.
I find the idea of that pretty repugnant.
Keep in mind that we are not a democracy here. If it were it would have ceased to exist long ago. This is a Monarchy with the philosophy of a Republic. We may not get it right every time, but we are pretty good.