PSA: Stop labelling people interested in OPSEC and privacy as "paranoid". Paranoia is a mental illness, heavily influenced by fear, that makes someone believe they're under constant threat even when there is no evidence for thinking so.
Being careful about your online identity, privacy, taking care of your passwords, and using second factor authentication is not paranoia. It's common sense.
There are malicious actors who want to get their hands on as much information as possible. This is fact.