Folk who say you smell bad. See also TheManufacturingOfConsent.
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Is this sorta like those people who create viruses and then sell virus protection software...?

A while ago someone came up with a program to protect you from all viri.  Basically, it made it so you couldn't receive any files.  One pities those who paid for it.

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Also, folk who say your XML and HTTP smell bad.  See SoapRpcBreaksRest.