The snarky responses are the norm for the Main Line. Not restricted to schools...it is everywhere, just part of the culture. Think of the "Housewives of " show. (They were considering doing the show on the Main Line, and we know a "housewife" that was scheduled to be part of the show...never happened.)

Despite the snarky comments, the schools do have a good number of gifted kids. If you want less of that attitude, you might try a Friends school. Snark and Quaker don't really go together.