Seeing may of the comments here leads me to the conclusion that some are not reading the whole article (but then again I have read dg's blog for 15+ years and realise that he usually deals with all exceptions in the article and you have to read it all)
> The reason for this is that all the High Streets in Inner London are called Something High Street. [...]
> Something High Streets in Inner London: Aldgate, Battersea, Borough, Bromley, [...]