I wish I'd done that too, in retrospect. I could obviously have done much more research around my opinions, and there's one use-case in which what I'm advocatin

I wish I'd done that too, in retrospect. I could obviously have done much more research around my opinions, and there's one use-case in which what I'm advocating simply does not work: when you are _paying_ to send those emails. In that case, yeah, you're gonna wanna do some validation.