The IAB loves tracking users but hates users tracking them
> As part of the UID2 API they specifically describe how an advertiser must "normalise" their users' email addresses.
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> This means h.a.n.solo+iab@gmail.com becomes plain old hansolo@gmail.comIt seemed to be completely obvious to me even decades back, that the + scheme would be trivially parsed and reversed.So I don't use it and just keep on making completely new aliases. So amazon gets amazon@example.com. If I'm not going to pay for anything on this account it also gets a random name from a random piece of well known media, like "Donald Duck", and all the data filled in randomly to ensure that it's not googleable, and doesn't correlate with any accounts anywhere else.The bigger issue I see is the desire to link everything to a phone number. Even stuff made for privacy, like Signal.