Yeah I agree with your description of 2312. Not just flat, but really hard to like too.
Something good might have come from the book after all! I was looking at it's goodreads page when I noticed this review:
For the past three years, I’ve paid for the privilege of voting in the Hugo Awards. I do this not because I love voting in the Hugo Awards (though that’s cool) but because, for the past few years, they have made available a voter packet containing digital copies of most of the nominated works. All I need do is purchase a supporting membership at the year’s WorldCon, which is always cheaper than if I were to buy the various novels and anthologies in which these works might be found. (Also, all the digital copies are DRM-free, a philosophy I support.)
That sounds amazing! I'm going to try that this year. I definitely spend too much on scifi already.