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There are 4 comments (sorted by their types, and the section they are about).
First, the introduction is written from the industry standpoint; e.g. the rationale for DNT is â€œwe donâ€™t want to offend the user because this leads to lost revenue,â€ rather than â€œthe user has certain privacy rights that we must respect.â€ Moreover, as noted above, usersâ€™ privacy interests are aligned against both commercial and government actors.
Second, we are concerned about the presence of statements like â€œAdvertising revenue is the single largest source of funding on the Web.â€ We do not know if this is true and we question its relevance here. The Internet includes vast non-commercial contributions of universities, government, libraries, nonprofit organizations and individual users. We expect that the W3C DNT standard will be adopted by these non-commercial entities as well.
Third, the document frequently uses the term â€œcross-site tracking,â€ and we think it should simply refer to â€œtracking.â€
As noted earlier, we do not wish to prevent user-agent vendors from shipping with a default of DNT: 1, and we have some concern that the current language may do so. We believe that the current statement of ISSUE-4 permits user-agents to ship with DNT enabled. We equally believe that user-agents should not ship with a default of DNT:0.
These issues appear related. We strongly prefer that DNT settings persist across sessions until modified by the user. We do not object to the standardâ€™s permissiveness here as a technical matterâ€”when the DNT header is sent, servers need not â€œrememberâ€ previous sessionsâ€”but DNT will be significantly more valuable to users, and will better meet usersâ€™ expectations, if DNT need not reset each time users visit a website. A non-normative reference about the value of persistence may be appropriate here.
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