Most of the 'Catters I know well and see with any degree of frequency are people I knew and fell over with long before the Mudcat. That said, I've yet to meet a Mudcatter I didn't like, and I've had people say to me: "Are you Gervase from the Mudcat?" at various times (I suppose that's were it helps to have an unusual name and not a pseudonym here), and invariably they're turned out to be incredibly nice people.
Of course that could be just that folk and blues types are incredibly nice people anyway.
Whatever; I'd have no qualms about meeting someone from the Mudcat if they were in my neck of the woods or me in theirs. After all, music is the common bond here, and I want to hear other people play and sing (and I'm bloody envious of Micca going to the FSGW weekend!)