only read the first two posts of the thread, but i have noticed that talking about hip hop in england (mostly with real people rather than the internet, which is an important distinction) is an area where i've encountered some of the most dickhead responses over the years. the one that sticks in my mind is someone pretty much laughing in my face when i told them i liked JME, over drinks in Audio in Brighton in about 2008. but there have been a few things like that and basically in england i am a bit wary of talking about it much, not least because my hiphop taste leans towards the garish and mainstream (as in, mainstream in the US), and that does tend to get looked down on a bit, and i find the 'backpacker' stuff essentially quite boring. aesop rock obviously, but even a lot of the griselda stuff that i think seems to be popular with those types.
i have always vaguely assumed that this is something to do with the decontextualised nature of being into an artform where the engine of it is on another continent. lets face it, its really hard to know much about what black americans are like if you're not around and seeing it with your own eyes (much less participating in it). there is a kind of insecurity there i think, people trying to one-up one another. which is an interesting question for a forum like dissensus actually.