Maybe we just do not give a damm if its agressive, or teritorial or reactive barking? The dog will bite anyway. Or maybe it is just horny and wants a quickie humping? Do not care, not interested!

Like we are suppose to guess that tail wagging at 1.5hz with 10 degree amplitude is safe (but only if ears are not raised)? Or that running away is bad?

It is just a trap to blame victim for "provoking" an attack. Dog should be secured and on leash, that is what responsible dog owners do!