Even if they'd have to hunt down that email address themselves, according to the article she links to.
A thank you email to someone you're already in an email conversation with is not at all unreasonable, but expecting people to hunt down your email address just to send you a thank you, is downright weird.
A thank you email to someone you're already in an email conversation with is not at all unreasonable, but expecting people to hunt down your email address just to send you a thank you, is downright weird.