Should English/English-style beers be served warmer, since that is how the taste was developed? Given that the British tend to drink their beer at a higher temperature than those of us in the US, should beer brewed in an English style be consumed that way? The justification I can think of is: the people developing the taste of the beer probably consumed it at a certain temperature, which might have not been the ice-cold levels that predominate in the Colonies.
Serving temperature is, of course, a preference.  Serve it frozen or boiling if you want.  However, a few opinions are:


CAMRA says that Real Ale (aka cask ale, usually english-style) should be served at 12-14 °C (54-57 °F), which is colder than room temperature, but warmer than your usually keg beer.
Ratebeer says the same thing regardless of whether it’s cask or not.
BeerAdvocate says 7-10 °C (45-50 °F) for an english bitter.


So, if you’re looking for a rule of thumb: “cool but not super-cold” or “cellar temp” will probably get you close enough.