On eg: http://en.wikipedia.beta.wmflabs.org/wiki/Main_Page
- "Terms of Use" links to https://wikimediafoundation.org/wiki/Terms_of_Use
- "Privacy policy" links to http://wikimediafoundation.org/wiki/Privacy_policy
- the second instance of "Privacy policy" links to https://wikitech.wikimedia.org/wiki/Wikitech:Labs_Terms_of_use
- "Cookie statement" links to https://wikimediafoundation.org/wiki/Cookie_statement (which then links to the privacy policy)
That's incorrect; beta labs does not provide the same privacy guarantees that production does, as far more people have server and/or log access. (That's a feature, not a bug; beta is used by developers to test their code and we want as many developers to be able to do that as possible.) So the production ToU and privacy policy make completely false privacy claims; the cookie statement (while it probably doesn't make any false claims) is hosted in production and thus references the production privacy statement, which is bound to be confusing; and the labs terms of use (while not making false claims) doesn't really say anything relevant, and is apparently interpreted by some people in ways that do not hold for the beta cluster (see e.g. T161051#4043353).
These should be removed and replaced with a dedicated privacy policy which explains that by using the site you accept that your network data is recorded and made available to a fairly large group of volunteer developers. Big flashing red letters might be in order.