I have a few more turn offs to add, some that surprisingly have not been mentioned yet:
-Rusted cars, trucks, tractors, motorcycles, bicycles, boilers, metal drums, gears, etc., in a grassy or wheat field. These pictures are all composed in the same way and have never been interesting, regardless how "perfect" the rust looks. There's a reason why those things are out in the field - because they're crap. Stop photographing it please.
-Waterfalls - yes, why don't we all do long exposure shots so the water looks boringly smooth?
-Wooded streams - desktop wallpaper material.

Double the heinous points if it is done in HDR (I've given up waiting for superman on that), or if it appears in a photography magazine as an advertisement or lens test (as if the pictures aren't already)