I hope this does not convince everyone NOT to weigh themselves - the vast majority of people who lose weight and keep it off DO weigh themselves at least once a month. I think the key is to weigh yourself in the morning before you're eaten anything, like the author said. It certainly doesn't make sense to get weighed after you've eaten - some of the salads I eat must weigh a couple of pounds anyway - not a lot of calories, but heavy, non-the-less. The scale is not your enemy - it CAN be a very useful weight loss tool.
Nothing more than a reality check.
I think most of us hate the scale because it forces us to be honest with ourselves, and face the fact that we need to really change our eating habits. If you exercise a lot and still don't lose weight, that's a clue - you're still eating too much of the wrong stuff.
Enough of my ramblings.
"It is better to keep your mouth closed and let people think you are a fool than to open it and remove all doubt." Mark Twain ;-)