I guess I was confused by your initial post in which you claimed, as a positive statement, that Epicurus himself was "a bit of a prude." I believe my initial statement was: "I don't know." I followed that with an opinion.

For what it's worth, I do have a BA & MA in Classics, and a doctoral degree in Ancient Mediterranean history (not that any of that matters on the interwebs or carries any credibility). I feel equipped to weigh the testimonia appropriately, and indicate which direction that evidence has me leaning.

There are many scholars who take the "we can't know for sure" approach, and then compose entire book-length treatments on the subject that reflect their opinion based on the evidence available. That's the position we're in with nearly every facet of antiquity. Many of my colleagues in history who study more contemporary periods often claim we lack the evidence to do ancient history at all. Obviously, I do not share that perspective.