I feel like I'm one of the few people who is not ashamed of playing Minecraft.
Here's a screenshot of my Facebook avatar, edited to take out my last name, since I really dislike my last name.
And here's some screenshots of Minecraft-related things that I've posted on my wall:
Do I get judged for it? No. At least, not to my face.
But then again, I have less than 50 friends on Facebook, and most of them don't even know me that well. Relatives, friends of friends from church who randomly sent me friend requests.
In real life, I wasn't ashamed of saying that I play Minecraft. I was considered a nerd/geek with very few friends, and in fact my best friend also played Minecraft, and openly talked about it with me in class pretty much every morning. Many people in my homeroom class knew that I played Minecraft, but either they didn't care or were too scared of me (violent boy, remember) to try and taunt me about it, since I was best friends with the largest kid in the room and sat so close to the teacher that I could take his stapler by reaching over my desk, LOL.
This upcoming school year, I won't have any friends (I moved a year ago and then was homeschooled) so I won't really have anyone to tell, so I doubt anyone will know.