Max Battcher writes:

+1. For the most part this was a great email. It probably belongs immortalized on the darcs blog and elsewhere.

It could even go in the manual! I think the first two chapters of the manual should be 1. Why Darcs? 2. Quick Start ...and the stuff about compiling darcs and migrating from other VCSs moved either to the end (as appendices) or simply onto the wiki.