<< What's wrong with being a Brit? >>
Taking that as a general query about Brits abroad: Its to do with 'visibility'.
We in UK are familiar with loud Americans (loud in dress, in speech, and in culture or lack of) but we also recognise the less frequent quiet ones.
Same in Europe, some Brits are VERY visible, and some effortlessly merge with the local populace. Sadly we now have a new generation of Brits who are like aviating Alf Garnets... xenophobia with union jack underpants!