Something I didn't know was a thing, that I really shouldn't be surprised about, is that website owners actually jump through some hoops to further sell out the users privacy. FB has the "Conversion API" where they enable website owners to basically "manually" track you by attaching an ID to users and sending "events" to FB via their API, in lieu of try to do so with a tracking pixel. Literally, it's an API to subvert people trying _NOT_ to be tracked with ad blockers and hostfiles etc. FB isn't even the only company that has an API like this, apparently, it's pretty established and developers/site owners are more than happy to narc you out if it means they can extend their advertising reach a little.