This still needs to be added to our docs. A `dnt=1` query param in a download URL is interpreted as an end-user opt-out. We plan to add more forms of opting out based on user feedback. We want to ensure it's low-friction to opt out of tracking.
Great suggestion, very appreciated. Global privacy control wasn't on my radar but this looks like what we should do. DNT is considered deprecated, at least according to MDN docs.