Fingerprinting is bad. It's a term that refers to building up enough metadata about a user that you can essentially figure out who they are. JavaScript has

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Fingerprinting is a term that refers to building up enough metadata about a user that you can essentially figure out who they are. Oliver Brotchie has documented an idea that allows for some degree of fingerprinting with CSS alone. The generated CSS to do it is massive (here's the Sass to generate it), but apparently it’s heavily reduced once we can use custom properties in URLs.

CSS-Based Fingerprinting | CSS-Tricks

<p>i’m surprised at the amount of things you can do with CSS</p>
