If you are seriously interested in affiliate marketing, then one of the first things you need to do is to build a website/blog to maximize your earnings. You can surely advertise your affiliate programs without a personal website, by adding links in your email signatures. But the number of people you can target using this method is very small and will help just a little. If you can build a website to maximize your affiliate marketing earnings, the audience to which you are exposing the affiliate program is much larger.
Reynolds will probably claim he was joking, but he seems to forget that a lot of people these days aren’t getting the joke.