It still strikes me that any dance team with a member who can write "Unfortunately (Gravesend) also has a large Chav/Pikey community and has recently started getting a lot of Eastern Europeans and a few Afro Caribbean residents," and subsequently be described by a fellow member as "one of the nicest people you could hope to meet" has quite a lot of explaining to do before it should be allowed near any school.

Context makes all the difference when it comes to the meaning of something like blacking up - and part of the context has to be a comment like that. Perhaps Rick H doesn't in fcat regard Travellers, Eastern Europeans and Afro-Caribbeans as people whose presence in his town is to be deplored. But that is the import of what he wrote.