Mark, how hard would it be in theory to swap some settings around to make one of our low-traffic sites take different caching characteristics, like leaving just strategy.wikimedia.org with either a Vary: Accept-Language or just having it not cache as much?
thats not squid setting, one can just send proper cache-control headers.
on the other hand, can we please avoid having these kinds of "special cases" all over - it is pain to do performance management with current stuff already.
Cheers, Domas