SMG does seem to like her body thin. I recently started following her in Instagram and she misses her body pre-kids – she still says that wouldn’t change her kids for anything. The problem with famous people is that they might promote an unhealthy body image and BtVS belongs to a time period where extremely skinny women were actively promoted across the board. They were also portraying high school girls, which is particularly problematic if young girls try to imitate their heroes. I think that Alyson Hannigan, Emma Caulfield, Eliza Dushku and Amy Acker are indeed thin but look healthier than SMG and JM in S7.Either way, it's really SMG's business how she feels about her weight, and she looked pretty amazing throughout the show.