I think it will be easier on you if you implement it into the system. That way, it is on them, and not on you.
I suppose for this to work though, you’d need a safeguard. Such as verification from email, and then like a two person authentication just to be on the safe side.
It would protect from infiltration of the account a bit this way. An idea to consider.
If you're an author, there's already something in place that makes it obviously your fault. Tony makes you delete all of your stories manually before your account can get deleted. Not really much in the way of safeguards for readers, but readers have a lot less to lose.