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A comment on How Retailers Use Personalized Prices. Parent comment

Re:How Retailers Use Personalized Prices by callalex on Sunday October 22, 2017 @03:10AM (#15525564)
This is just a minor variation on the plus tag in gmail addresses, or am I missing something?
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Re:How Retailers Use Personalized Prices by imron on Sunday October 22, 2017 @03:54AM (#15525676)
It is! Except sites can't just do a regex to test for '+' so it's not easily detectable as such.
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