> Elephants shouldn't come in my house. This is a subjective statement. > I value it not destroying things in my home. This is an objective statement. But ot

> Elephants shouldn't come in my house. This is a subjective statement. > I value it not destroying things in my home. This is an objective statement. But other people are free to assign their own subjective value to it. Some people would would like you to suffer from your possessions destroyed e.g. by a trampling elephant. The previous statement was also an objective statement but it doesn't mean you have to acquiesce to it. > But bad ideas exist, as do good ideas. Sure, but which of ideas are "bad" and which are "good" depends on the value system of the thing/person doing the appraisal. E.g. deliberately reusing GUIDs for different requests may allow bypass of authorization checks — which is a good thing for an attacker, but not so good for the system's owner.