I've come across a few people over the last few years that take it very seriously and bang on at length about how the police and courts have no authority over them as they are self declared 'freemen'. Something to do with common law being the only true law in Britain, I think? And not having to wear bike helmets or pay for TV licenses or repay your debts also seem important to the ones I've had the dubious pleasure of meeting.
A couple I met at the weekend have taken the biscuit though and not registered their baby's birth because apparently this will mean said baby grows up to be a 'freeman' (she's actually a girl but the term appears to be freeman anyway). They believe quite firmly that to register her birth will mean that the law assumes her and her name (which is a fucking corker, of course) are one and the same and that only by NOT registering her birth can she be free to be a human being. Quite what this actually means is a mystery to me and tbh the mumbo jumbo they gave me by way of an answer leads me to suspect they don't really know either 
I've tried to read up on it but all the info I can find is written in a style you'd expect of an paranoid, delusional, and possibly hallucinating chimpanzee let loose with a legal dictionary.
So AIBU to think this is bollocky woo of the most fucking ridiculous type? Or is someone going to come along and actually enlighten me as to wtf its all about, preferably in plain English with no pseudo-legalese?