Savvy TLF Readers probably realize that the TLF was preceded by the Animal Liberation Front and Earth Liberation Front. I suspect neither group has much of a sense of humor (although I’m glad to see from their Wikipedia pages that neither organization appears to have actually killed anyone, despite their use of terrorist tactics).
A TLF reader just called my attention to another group that most definitely does have a sense of humor: the Beard Liberation Front. I also discovered the The Hamster Liberation Front through Google. Then there’s the classic People’s Liberation Front of Judea (or is it the Judean People’s Liberation Front?) from Monty Python’s The Life of Brian:
Fight on, comrades!