Fair point. Mine is trimmed, and shampoo'd daily. No more a threat to global environmental treaties than the hair on my head. Unless you subscribe to compulsory this stylee:
You realise what that is? It is vomit. I can assure you there is no vomit in my beard. I am pretty sure its free of poo, wee and lager, too. :rock::angel::rave::cheers: