I do. I joined a while back and really got into it. I had a "sponsor" who required me to e-mail her every night with a report. It wasn't about the food, but rather if I had harmed anyone that day, said an unkind thing, etc.
It got a little negative for me.
I got depressed and asked my sponsor if I could take a week off. She said "no" and that was the last I heard from her.
This was all done over the phone.
There seemed like some nice people were in there...I just hit a rude one.
I joined Jenny Craig and have been much happier.