i told a CBP officer that i didn't have facebook (i don't) when i was trying to enter the US a bunch of years ago (she said she was literally searching me on facebook and couldn't find me).

she said it was suspicious.

I keep social media accounts around but I don't really post anything. I guess it's only a matter of time before some cop looks at that and decides I'm abnormal enough to be investigated.

Yup--I have a FB account, only used for participation in some FB hiking groups, I never even look at my wall. I have a couple other accounts that were purely because it was needed to read, I've never written anything with them. I must be extraordinarily suspicious. Combine that with a clueless look at my travel history and it's straight to Gitmo time. (I have been in some countries that would be big red flags if visited now--but back then weren't an issue.)

I guess there's a need for social media deep fakes, so to speak.