I think the definition and perception of what is “thin” varies too much for a question like this. From the answers I think I use thin to describe someone with more weight than others? I am really not sure. I would say the majority of the professional dancers on Dancing with the Stars for instance are thin. None of them are skinny to me. They all look healthy, I don’t think anyone needs to gain weight or would be mistaken for anorexic.
However, I do think the overall concensus here is weight is not a big factor in your enjoyment of a performance.
I’m kind of with @Pandora. For me certain types of dance I expect a certain physique. Never skin and bones, I don’t find that attractive at all, but overweight usually is not very appealing to me if it is a ballet for instance. I once went to a college performance of West Side Story, and some of the students were quite overweight, the dancing was below par at times, and all of it coupled together was a negative. My local theatre puts on a lot of musicals and many of the performers, some dancers are average weight, not thin, not fat, let’s say women as big as American size 10 for a frame of reference. They don’t all have the same body shape when lined up, it is far from being a Rockets line, and that is just fine. I enjoy that they are more “real.”
I used to attend my neice’s dance receital (ballet, tap, and hip hop) and some of the very talented girls were heavy, and a lot of people talked behind their back about their weight. I hated the gossip, never participated in it, because they were just kids and teens, and it was a receital, everyone gets to perform, but I do admit to having the opinion that I think the dancing would have been more beautiful to me if those particular girls lost 20 pounds. If I had to pick for a performance or dance troop, their weight would be against them.
@gailcalled From what I have seen of the Dance Theatre of Harlem, their dancers are all thin. I understand your point about body type, I always say I have the typical ballerina body, that is when I am thinner. Longish torsoe, long neck, fairly balanced hips to bust ratio, straight back, tush is a little on the flat side. I blame it on my Eastern European genes. I like my body overall don’t get me wrong, although I do gain weight in my gut when I gain.