No one noticed???
I agree that people don't want to sound rude by mentioning your weight loss. I'm a teacher and had my surgery in September 2008. During the school year I lost 140 pounds. NONE of my students mentioned my loss during the year, until yearbooks came out and they saw my yearbook picture. Even 8th graders can be sweet!! 
Laura

Laura
Laura in Texas
53 years old; 5'7" tall; HW: 339 (BMI=53); GW: 140 CW: 170 (BMI=27)
RNY: 09-17-08 Dr. Garth Davis
brachioplasty: 12-18-09 Dr. Wainwright; lbl/bl: 06-28-11 Dr. LoMonaco
"May your choices reflect your hopes and not your fears."