A lot of the beer styles are really only good for a laugh. OK you need to know them for comps, but they have little relationships to the history of a style.
E.g. while there are still a few Milds of 6% or so abv, the guidelines say a mild must have an abv of only 3.5%
A stout, originally a Stout Porter which meant a strong porter, well todays anaemic guidelines mean we should call them small black beers All of todays stouts and porters are just pale + coloring malts anyway, no brown malt anywhere near them.
Agreed GMK, but, I also like to know the type of style the beers I brew are closest to.... I don't brew for comps, I brew for my taste, but, I also like to know how far off or on target my tastes actually are, if that makes any sense.