Oh boy, this should be good. Mark my words, this will be followed by a "proof" of nonexistence, in the following form:

"Well, let's build a list of attacks that I can think of off-the-cuff. And then let's iterate through that list of attacks: For each attack, let's build a list of 'useful' things that attackers could possibly want.

Since I'm the smartest and most creative person on the planet, and can also tell the future, my lists of ideas here will actually be complete. There's no way that any hacker could possibly be smart enough or weird enough to think of something different! And again, since I'm the smartest and most creative --and also, magically able to tell the future-- and since I can't think of anything that would be 'worth the cost', then this must be a complete proof as to why your security measure should be skipped!"