Comment by avian

> I’ve noticed that if I respond to people’s emails quickly, they send me more emails.

An alternative explanation would be that if you don't take your time to understand people's mail and just rush to answer them as quickly as possible, things that would take two mails to communicate now end up being a thread of ten mails, two phone calls and an in-person meeting.

Nothing is more infuriating than a person that replies 30 seconds later with a message that suggests they didn't read past the first sentence.

I don't know the author or his ways of responding to emails, but in my experience the above often applies to people that value speed above all else.