It's has a nerd stigma, but who cares? I'd probably not talk about it in the office unless someone was also interested in it, but in the same way few people talk about their hobbies unless asked about them. If someone doesn't want to know you because you play tabletop games then you probably don't want to be friends with them anyway. How shallow. You shouldn't care what others think of you as long as you know you are a good person IMO. As long as you can be proud of what you do, then fuck the rest of them.