People who don;t find Russell Brand in the least bit amusing - and i am one of them - only have to check out the newspaper ads for his stand-up tours, and note the number of 'Sold Out' stickers there are for nearly all of them.
The guy is massively popular! His Radio Two sho was attracting two million listeners, which is respectable by anyone's standards.
The BBC has a responsibility to offer entertainment to as many audience demographics as possible, and that will always mean that some people are entertained, while others are not.
I don;t find him funny, but his writing is wonderful, and you could never say he is not talented - only that his talent does not appeal, which is not the same thing at all.