This is actually a decision I took back in early June, well before the most recent attack on the integrity of reviewers. I haven’t been able to announce it until now because announcing a fold just before the voting deadline would undoubtedly have affected the Hugos and that would never do. (I will, of course, decline any nominations I might receive next year.) If I’ve been a little cranky over the past few weeks, now you know why. I’ve just wanted to get the whole thing over with.
The reasons for this decision are many and varied. One of the least obvious is that I have a major logistical problem. It simply isn’t possible to run an operation like this when you don’t have a permanent home. In addition, over the past year or so I have become very disillusioned about both the quality of my own work and the general usefulness of online book reviews. The bottom line is that if you don’t think what you are doing is worthwhile then it is very difficult to maintain the level of commitment necessary to produce something like Emerald City.