Actually, I can see a point in randomly reviewing staff logs pro-actively if you're big enough and if your staff members don't really have a personal relationship with you. I suspect you wouldn't start running into situations that justify that kind of pro-active enforcement until you have quite a few more users than, say, Achaea has (say, 5-10x as many).
This is no different from a company reviewing the email and website visit employees make from work. Rarely (ever?) will a company actually check everything every employee does, but if you know you MIGHT be checked, that's often good enough to discourage naughty behavior. Same principle airports use with flagging only one out of every X traveler for extra searching.
--matt
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