Lots of good responses.
We have found that it depends on the situation. There are definitely parts of the lifestyle where folks that are on the low side of average in appearance, especially as regards being overweight, just aren't going to get much action. Where we saw this most was clubs and hotel parties.
I think it's a fact that when you see swingers interacting in large groups, like at a social dance or a convention, people tend to pair off by appearance "grade". Yes, I know we never talk about this, but it's true. We all did it in high school, and we still do.
Is this a generalization and are there plenty of exceptions? You bet. But I think it's true.
On the other hand, there are plenty of guys who like BBW - and lots of definitions of where "big" and "beautiful" start and stop. I think everyone who is realistic and puts in some effort can find some folks to party with. Whether some particular folks of your choice will feel the same way about you is another matter.
So, is there some discrimination? Sure, same as anywhere. Are there folks who will like you anyway? You bet.
DBStPete/D