This could be repeated in many different discussion threads about Google Analytics, but I’ll put it here at least:
European users have a right to privacy, which is not compatible with discourse instances using GA. Fortunately, it seems that discourse.org doesn’t use GA (anymore?) so it’s at least ok here. But all of us hosting Discourse instance in EU and/or with European users should remove GA asap.
Same info, in French: https://www.euractiv.fr/section/lactu-en-capitales/news/lutilisation-de-google-analytics-viole-le-droit-europeen-selon-lautorite-autrichienne-de-protection-des-donnees/
(taking as much distance as possible from Google is a healthy choice anyway, no matter how popular their tools are, unless you want to have to justify yourself someday to a Data Protection Controller)