^^In general, on the forums it seems to be okay (under a nickname, obviously)
to pick all the smallest details, make hasty conclusions and harsh statements based on looks only. Say things one wouldn`t probably say even in private conversations with friends, let alone to the subject her-/himself. These celebrities don`t show up to us as whole human beings, they are just pictures, and those seem to make them as targets. However, their image might be their whole selling point, but that is a whole another story. Even that "career choice" doesn`t justice all the hate talk which flows on the net.
TFS is one forum which is very untolerant with inappropriate conversation, thanks to its strict forum policy which sometimes may seem a little too strict, but based on what I have seen on some less moderated forums, we can all be very thankful for those rules. People write some unspeakable things and fill page after another with total nonsense.
Sorry off topic... back to Kate. I think some fashionistas are little jealous of her Style Icon status (made by British media) and on the other hand disappointed since Kate hasn`t made any too exciting style choices. Truth is she is not supposed to be a fashion icon or doesn`t seem to even want to be one. Even her actual status demands certain conservativity. I think she usually dresses properly for all situations and looks pretty, and I also think she looks her age and it is not any shame to be or look 30... If something, I wouldn`t copy her style literally, but it suits her and she doesn`t look uncomfortable.