But again, some competition wonks look at this situation and say, "Well, that's not right, we need to make sure that *everyone* can do attribution." This was a (completely mad) premise in the (otherwise very good) 2020 Competition and Markets Authority market-study on "Online platforms and digital advertising":
https://assets.publishing.service.gov.uk/media/5fa557668fa8f5788db46efc/Final_report_Digital_ALT_TEXT.pdf
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