That never works on Facebook though, because as soon as a ”friend” reports that ”I’m not me” then the account will be permanently banned. That also triggers for photos that’s not genuinely me, like a pet or drawing as portrait.

I like using a date of birth of 1 January. It's plausible but also hopefully suspicious how many people seem to be born that day if others do the same.

Jan 1st, 1984 every time

Completely agree. I use randomness for all of these now – plausible randomness if it’s possible I’ll have to give it over a phone.

strongphrase.net is good for this.