so i guess that means that using the browser cache is a bad idea then. if that option requires people to manually refresh their cache, how many people will even know what a cache is an how to refresh it?
when it comes to website performance, i believe that it is up to us the web designers and developers to be in charge of how well a website runs. the only exception to this rule is when people use older browsers or IE.
it should not be the responsibility of the user to make the website work but rather the admin who should always make sure that what one person sees is the same as what everyone else see (with the exception of those poor people who think that IE is a good idea)
so we should not use that option because we cant depend on users to know how to refresh their cache. otherwise they will think that the website never updates.