I don't see what the problem with foreign members is. If you look at the American sites like TFW2005 and AllSpark, the members are about 70% American, 20% Canadian and 10% misc.

The British sites like Transformers @ The Moon and TheTransformers.Net are at least 80% British with a handful of other Europeans/N. Americans and the odd Australian.

Then the Dutch sites are almost entirely Dutch with the odd Belgian member, etc. etc.

But none of these places suffer for the multiculturalism. Restricting membership to citizens of certain countries borders racism, and is especially pointless when you'd probably get almost no foreign devils joining up anyway.