............of course it isn't. Technically, nothing is nerdy. It's the PEOPLE who make it nerdy. Simple: Gravity Falls is a family show, and it has nerds who like it as well, which lead people to assume it's nerdy because nerds like it, like yours truly. So basically, one could only consider something nerdy if a nerdy person likes it, even then it's wrong, but it's ultimately up to the one person who can handle their own opinion to judge whether or not it's nerdy therefore, it's openly criticized.

It is nerdy but that's why I love it

I take pride in being a nerd

Whats wrong with nerdy??? I am a nerd, and also a geek. 😌 #Geek/NerdPride (ik thats not a real hashtag but someone should make it one)

Btw, i love Gravity Falls