Self deprecation is definitely a defense mechanism. If you make fun of yourself, you take away the ability for others to do it first. I know Kirstie has struggled with her weight, but don't most women at some point in their lives? Some are just genetic freaks of nature and remain thin their whole lives. Others struggle at some point...when they get older, when they give birth, when they are stressed, because of medical conditions, etc .....Anyhoo...fat jokes are right up there with racist jokes for me. Who wants to live in a world where everyone is the same...cookie cutter...thin, beautiful, ugh. Boring.
And Joan Rivers has no room to bash anyone. Logically she should look like the crypt keeper by now but she has more plastic than the Barbie aisle at ToysRUs.
Frankly, I don't think Kirstie looks bad. She looks healthier than most of the supermodels you see teetering up the catwalk.