I try not to be paranoid about it, but there are several governments that I just don't talk about online. They are known for aggressive Internet task forces and have histories of taking actions. I don't see any benefit publicly voicing my opinion on them.

All it takes is for them to indefinitely store all content posted to certain sites (and you can bet reddit and hacker news are on that list), then run algorithms to de-anonymize it. Then they can score you.

Maybe in the future you get a promotion. Maybe you're crossing a border. Maybe a YouTube video you post goes viral. Suddenly that scored record of you sets off an alarm.

The digital history you are creating today isn't going away for the rest of your life.