Imaculata
Hero
Do you think that stigma is rooted in its history, or just part of the general aversion to nerdiness suffered by much of the population?
Depends. I'm sure some of the satanic craze has stuck with people, especially in very religious communities. But I think the nerd-stigma, and the idea that the game is 'childish' is probably more prevalent. Many people still seem to resist the idea that a game of make belief can be enjoyed by normal adults, and that there is nothing abnormal about that.
TV and movies certainly haven't done D&D any favors. The game is usually portrayed as something for complete nerds, and is usually made fun of. The show Stranger Things really is the first time I've seen a normal and honest portrayal of D&D.