over-rated in what way and what does a homebrewed chocolate porter have to do with a dry irish stout? It does seem lately that widely distributed brews made by a large concern are worthy only of disdain by the modern craft beer drinker. I don't think guinness pretends to be anything it isn't and what it is is done very well. Realistically, guinness is a world-class beer in that it defines a style. That it's not in double digit abv percentage, triple digit ibus, doesn't have any nuts, berries, orange peel, scotch bonnet chilies, star anise, landfill fire smoked malt, or isn't aged with dry cured bacon does not mean it isn't a good beer. What you prefer to drink can be chosen subjectively but as a knowledgeable beer drinker and brewer i think it's best to look at the world of beer as objectively as possible.
. Over here we'd send back a pint if it is not the right temp. or let settle properly. Old skool drinkers are a fussy bunch. In most pubs there are two types of Guinness, Guinness & guineas extra cold for the lager boys. Guinness brewed outside of ireland will always taste slightly wrong (think water profile) due to the water source. As. For Nigerians drinking more then the Irish that is just down to population? Check the stats for pints per capita. 
