I'm not sure if you understand what "Public Domain" means.
I certainly understand what it means. I volunteer my not-for-profit efforts to make public domain works. Those works IN PRACTICE enter the public domain when PG makes them available to the public, not before then. When books get stuck on DP queues "forever" then for-profits pick them up from SR and distribute them under DRM at which point in time the book still IN PRACTICE fails to enter the public domain. This makes me unhappy, not principally because a for-profit has picked up the book but rather because DP continues to fail to recognize that their current queuing system and work rules are busted, such that effectively one third of the effort contributed to DP never in practice reaches the public domain, which in turn wastes my time and effort when I volunteer there -- not to mention more importantly the time and effort of 1000's of others who volunteer there. But, instead of recognizing that the current system is busted and that people there need to fix it what happens instead is that DP'ers insult the intelligence of people who try to point out to them that the current system is in fact busted. Again, under the current DP system for every three books started two books get released. This means that about 1/3 of the DP volunteers efforts are effectively being wasted.