I have exactly the same problem.

> I mean, I get it.

I don't.

Seriously, that's a huge fricking red flag. Obviously, most of those companies I would never do business with anyway, but this puts it over the line for all the others.

If they don't understand the first thing about validating their putative customers' emails by, you know, sending an email saying "is this really you?" then they've completely proven their technical incompetence.

The worst one is robinhood. I have two different email addresses that different people have used to sign up for robinhood accounts (back when they were giving anybody an account).

Occasionally, I tweak them about sending me shit.

"Sure! Just send us a copy of your photo ID to prove you're not that person."

Nah, bro, you've proven you're clueless, and there's no way I'm sending PIA to clueless people.