alt Hacker News> realized
Most UK and Australian writers would spell it "realised" so there's a bit right there.
Even if you include no personal information, there is information in writing style.
Stylometry is the study of this. Yes, there's also adversarial stylometry - distorting your writing style to fool an analysis. It's probably effective now, but that could change overnight and every archived post that every OSINT organisation has collected is deanomynised.
Yeah you can say "I change my style". But there's some bits that don't have false positives. If I EVER say "praise the omminsiah" I'm definetly au fait in 40k memes. If I ever say au fait I'm a person who has at least a rough idea of what it means. There's no false positive here, so if you can just find about 29 undeniable uncorrelated bits that are known to not have false positives ... a more advanced analysis could exploit this in a more continuous way (e.g. the likelihood of it being a false positive). I should shut up now.
"Stylometry is the study of this."
It's as old as history. In the days super-abbreviated telegrams (words were costly) you could even get two for the price of one--the author and the Morse code operator who actually sent the telegram. He could be recognized by his Morse fist, other Morse operators on the network would recognize him by the style of his sending even though they were only listening to dots and dashes,