I think you're misunderstanding. I'm saying it can be an important part of the social experience. Not everyone likes gossip and drama, and some don't even think it's appropriate. Gossiping provides a social venue for people to relate to each other and bond over similar ideas/beliefs on social situations. Regardless of whether it's appropriate or shallow, it serves a social purpose.

I think to an extent, we're debating the semantics of "extrovert".