One of the things I think most people don’t realize is that the internet—like, the whole thing, and the base technologies it runs on—are a giant tracking machine. Whether or not individual websites monetize (or exploit, or both) that is one thing, but the fact is that every time you load any resource (an image, say, or a font or script or video or, or, or…) from any website, you leave that website with a record of it.

It’s hard to even grasp the scale of this, until you, for example, read the lengths to which Feedbin had to go to to try and avoid it…