When you open a Stack Exchange site the first time you are asked about your consent for storing cookies. You can disallow all cookies except those that are defined as "strictly necessary". The explanation of this category from the privacy policy is the following:
These cookies are necessary for our website to function properly and cannot be switched off in our systems. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms or where they’re essential to provide you with a service you have requested. You cannot opt-out of these cookies. You can set your browser to block or alert you about these cookies, but if you do, some parts of the site will not then work. These cookies do not store any personally identifiable information.
I was a bit surprised looking at the cookies when I saw that SE is saving a _ga
cookie even before you consent to any cookies and even if you disallow any but the strictly necessary cookies. The _ga
cookie is a Google Analytics cookie and contains a unique identifier that is used to track users. Looking at the privacy policy this specific cookie is also clearly identified as a "strictly necessary" cookie there.
Now, it is true that the cookie contains no personally identifiable information, but it does contain a unique ID designed for tracking users. So while it probably doesn't violate the letter of the privacy policy here, I find it very deceptive to put a tracking cookie into the "strictly necessary" category. My personal suspicion would be that this might not be GDPR-compliant, but I don't know enough here to be sure. But independent of that I find it deceptive to claim that a tracking cookie is strictly necessary for the site to function. And if you include tracking cookies as strictly necessary, the explanation in the privacy policy is deceptive and misleading as well, as it does not mention them at all and only describes cookies with actual functionality.
I also checked the network requests, and even with all optional cookies declined there are requests made to Google Analytics that also include the tracking ID from the cookie on every page load. So Google Analytics tracking is enabled automatically without asking for consent. And while the cookie is declared as 1st party in the privacy policy, when the id inside it is sent via Javascript to a third-party domain, that description is rather deceptive while being only technically true.
I don't see how Google Analytics is "strictly necessary" for the functionality on the site, and enabling it and the tracking cookie without consent does not seem right to me.