I emailed one of the two developers and I have bad news, they seem to have changed their minds in the less than 3 months since they said May 9th. =(
I've asked permission to quote the email here and will do if I receive it.
Pheace: Um, I can easily find a few people who pirated a game and didn't buy it. Thus, lost sales?
I fail to see why one is more 'definitively' true than the other.
Ah, but can you prove those people would have bought it if piracy was impossible?
When someone says "I would have bought that game if it weren't for the DRM", that's proof.
Oh hang on, he posted his reply on their forum so I'll just link to it:
http://www.spacepiratesandzombies.com/forums/viewtopic.php?p=23417#p23417 Not yet, and likely not for a little while. We did not expect to still be in full production of SPAZ at this point, but we are (releasing mod tools last week) Our purpose in removing the DRM is to prevent the game not working for people at some imaginary point in the distant future. Since we are still working on SPAZ and MinMax will be around for at least 3 more years, it is not a high priority. Keep in mind the DRM is a 1 time call home system. About as light as it gets.