The post talks about sending personal emails. While that may be possible for smaller companies it doesn't really scale. At some point a company will have to use more automated email.
However, I think that you should really consider whether email is an acceptable means of supporting customers/users. If it is, why not have Reply-To: support@example.com?
It has happened on several occasions that I have questions regarding an incoming email, but it's sent from noreply (with no Reply-To) so I can't respond directly. Instead I have to look for an email address or a form on their website, requiring a long detour.