It's bound to be more 'friendly' in the UK section. Because it's much smaller people have built up relationships and know, to an extent, people's personalities & tastes (Will!!!!). Nigh on impossible to build that sort of banter over in the larger US section without it escalating into a row (not forgetting the different culture too).
Plus, if you really piss someone off on here, you're generally only a few hours drive away from getting your head kicked-in
.