I think the main reason so many people lost their Silver whistle is because they didn't bother to earn any more points once they reached it. They knew that Gold and Diety were the "impossible" whistles, so they didn't see a point in continuing. It's kind of the same rule with some level 9 users who've stopped depositing, knowing that the gap to level 10 is pretty big.
If this happens to be you, you shouldn't be mad of Wade. Be mad at yourself for stopping so early. However, be happy that you can just as easily get back up to your old whistle.