I always thought it was bold for people to post anything using their real identity.

You never know if a stance you have now will be frowned upon in 5 or 10 years from now.

I’ve heard you can’t pass customs with a phone without your social network accounts.

You don't need to post under your real name to be IDed.

It's trivial to acquire a list of real people tied to email addresses, phones, social media. And that's what's out there for "normal" businesses.

Who knows what kind of tooling is available to people who serve on the boards of tech giants?

Maybe not all customs are created equally, but flying between Toronto and the states I have never had to show my phone let alone my social accounts. Also never seen that going up through customs.