I don't think historical examples of why doing bad things is okay are really relevant in the world we live in today.
But then I also don't think preachiness and moralizing have any benefit except to the people agreeing with each other, if an open discussion about the matter isn't the goal of the conversation.
I would be very interested, Claude, in having a conversation with you about how your personal ethics evolved and what drew you to certain historical examples.
To answer your question - numbers of any kind are just a placeholder for more meaningful communication. For instance, social security numbers, policy numbers, etc. They are mutable and shifting and more numbers are piled on us as we grow older. Our reviews at work are contingent on our hiring dates, etc. All of the numbers add up to a personal profile of someone, but the numbers themselves are meaningless. Just data without context.
Likewise e-mail addresses are often chosen to represent a facet of a person, not the whole. Skydiver77@hotmail.com, for example, may tell you that someone was born in 77 and they like to sky dive but it doesn't touch on their whereabouts, their personal history, their family connections, what other hobbies they enjoy, etc.
So to base a spell with those bits of information as the focus, I think it would cause the results of the spell to become skewed or warped - or at best to be minimally effective.