The other day, I was poking around in birdsite preferences and noticed I was included in 1 "tailored audience" for targeted advertising.
So I requested more info. They sent me an email with a PDF.
I'm targeted by @MiracleWhip, a crappy knockoff mayonnaise-wannabe.
(Ironically, it uses soybean oil as a main ingredient, so I'm literally allergic to the stuff. They can advertise as much as they want, but I'll never buy it.)