“We’ll be right over.”
Later, after OP told the user and they failed to change their address, OP logged into the site and changed their password, putting an end to the spam they were receiving from the user’s actions.
I don’t have an ethical qualm with this. He didn’t want to sign up for the service. Someone else signed his email address up for it. Legally, I can’t imagine that being prosecutable.
I got divorced a decade ago, and every well-wishing person in my life was strongly urging me to do things which were shockingly counter-productive / dangerous / wrong, based on their confident understanding (assumption, really) of the law which was completely and dangerously inaccurate.
Hacker News audience is global. People start accounts for various purposes. Yet people still freely share the notion that logging in to some unknown website run by an unknown company from a hard to spell country and then touching things is universally safe.
I miss the old "IANAL" tag which at least provided basic warning and self-awareness :-).
Just include "not me!" In the verification email, dam it
Consider that the “imposter” starts uploading child porn or something, and it’s on an account registered to your address. I think it’s perfectly A-OK to tell the service that it’s not me using the thing and I want them to close the account someone created in my name.