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by melody_calling 716 days ago
> Every time this topic comes up, people delightedly mention the German Tank Problem, but I have never, not once, seen anyone post an actual example of when a modern business got rekt by a competitor using knowledge gained from monotonic IDs.

At $previous_job (payments provider), the sales engineers would often spot merchants using sequential order IDs and mention it to the account managers.

Rekt? I guess not, but knowing what percentage of their business we processed was extremely valuable information when it came to renegotiate the contract.