Amazon.com reviews "helpful votes" count hit 3,000. This means my reviews were considered "helpful" 3,000 times. (Conversely, 299 people thought they were not helpful. Sorry!) Thank you to everyone who answered yes to the question "Was this review helpful to you?"
I reported hitting the 1,500 mark in December 2003. Since then I reviewed 62 more books, but my reviewer rank has dropped from 336 to 390. On the positive side, my average number of helpful votes per review has risen from 12 (or 1,500 / 125 ) to 16 (3,000 / 187).
Competition is tough when many high ranking "reviewers" post several times per day, showing they only glanced at a book's contents and read the back cover. The person I have in mind when writing this, however, has received 13,236 votes for 2260 reviews. His vote-to-review ratio is less than 6, indicating his reviews are, on average, not that helpful. Justice, perhaps?
I've only just started reading and reviewing regularly again. Right now I'm enjoying Running IPv6, which is excellent. I'd like to thank all of the publishers who send books for review. I never sell them on eBay, nor do I receive money from publishers or Amazon.com to write reviews. I'm in it for learning and sharing word of good technical books.