Assuming one person that read your HN post is outside the US, and not provably a US citizen, then they'll read the thing you posted as being in the section 702

Assuming one person that read your HN post is outside the US, and not provably a US citizen, then they'll read the thing you posted as being in the section 702 foreign intelligence umbrella. So, now there's a mapping from 2OEH8eoCRo0 to your real name somewhere in a "secret" law enforcement database, and that can be used to bootstrap a FISA warrant against you with effectively no oversight.