Heard about it and even saw the TERRIBLE young Tom Hanks movie Mazes and Monsters. I was born in 1985 so by the time I learned about DND and heard about the Satanic Pact, it was mid/late 90's. The entire thing (Satanic Pact) was some of the dumbest hits ever. I swear parents either just walked in on their kids, playing DND, at the worst time or just never saw a group with a Lawful Stupid(perhaps the "only" time such a thing is good) Paladin in play.
And I've played enough video game rpgs that probably would've seemed worse to Parents were going through everything with a fine tooth comb about it. Heck, I was the only one in my high school English class that knew what a Cockatrice, Basilisk, Asp, etc, etc, were because of various video games. Later on in college, I was the only one in a class that knew what a Succubus was when the Professor, at a rowan college seminar, asked that question when talking about the Medieval Church and its explanations for wet dreams. (which then prompted a girl in the class to look at me and say "That's creepy that you know what that is.")
Look, you don't forget what a Succubus is after you do that boss fight in Castlevania: Symphony of The Night.
Granted, I never went through the frustration that a lot of people probably went through during the Satanic Pact in DND's history. Knowing my mom, she would've reacted the same way, but then knowing me, I would've had on in full display, the most Lawful Good maiden saving campaign with such sugary sweet goodness just to throw off any "why are you playing Satan's game?"
Heck I remember in my Church's Sunday School classes the teacher, wonderful person regardless of views towards the hobby, handed us all a card with various like ungodly games and stuff to avoid and it had both DND AND Final Fantasy(gave me a silent laugh) on it.
I am though happy that the hobby has been able to throw off that stupid image and is able to show people what it is actually about and how fun it is.