[Ad Contubernales]
Just a reminder that the papyrus only has ΠΡΟΣ ΤΟΥΣ... We have no idea to whom Philodemus was addressing the treatise or who he was arguing against (in the title, he obviously had strong feelings expressed in the text itself).
Plus, even if Philodemus wasn't a fan (a for or against case can be made) of the "four line cure" it was definitely in use and in circulation among the wider Epicurean community. It's authenticity as an Epicurean "memento" verse is indisputable. That connection to the ancient members of the school is enough for me to continue to be a "fan."