Regardless, we recognize it isn't for everyone so here is what we are going to do. We'll build some new maps without pirates and include them as soon as possible. Anything more drastic (such as turning them off completely) would take a fair bit more work and couldn't be done quickly. Besides, we'd also like to take some time to evaluate possible side effects of their removal that we haven't considered yet.
Thanks for bringing up your concerns,
-Blair 
Blair, honestly, there are really two things that need to be considered for the Pirate integration with the game to work out well in a ballanced way. With two somewhat-interesting changes, people would be more sanguine about the presence of pirates even without new non-piraty maps (though there is a massive demand for that as well, so don't think I'm suggesting going away from that).
1) Perhaps the most important one, the speed of the game should scale the time between pirate attacks. On a Slow game (which I prefer), the resource flow is too slow to make a pirate attack every 12min reasonable to deal with. Scale the basic numbers along with the rest of the delays and the ballance'll be retained with only minor coding requirements.
2) On the random maps, add an option for No Pirates. Then the node/planet generator for the maps just won't use PiratePlanet as a possible entry at all. Bingo, infinite number of random maps with no pirates and everyone playing random gen'd maps wins. This is non-trivial programming, but there should likely be some more options for random map generation anyway, much like the random map options in GalCiv. No Pirates is the obvious first one to get in there.
With just those two changes, I think you'll see more people enjoying the pirate threat as much as you do, when they want it, at the pace that keeps it balanced.
I do appreciate your interaction and contact with the community, and I want to encourage you to view the passion with which your community engages with you to be a good thing. People love your work. The more they love it, the more glaring the pieces they love less stand out.