Several people have requested this, but nobody has given me a satisfactory explanation of why. I can understand listing two phone numbers (in case one line is busy), but two e-mail addresses? Implementing changes like this requires a fair amount of work on my behalf in changing the existing programs used to maintain the repository, which introduces the possibility of new bugs. There should be a good reason that applies to a number of people to merit such a change.
Unless somebody can convince me that such a change is worthwhile, I will continue to list only one e-mail address. Therefore, choose the more reliable of the two.