No way in hell this is going to be representative, of anything at all. Well-off people who feel like bragging about their wealth are not representative of the

No way in hell this is going to be representative, of anything at all. Well-off people who feel like bragging about their wealth are not representative of the group as a whole, nor would you know what fraction of the group they comprise. The same goes for not-so-well-off people who feel like sharing. Then there will also be posers and fakes. You just cannot extract anything meaningful from a sample of 100 of this sort of data.