Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Meta Stack Exchange is a question and answer site for meta-discussion of the Stack Exchange family of Q&A websites. It only takes a minute to sign up.
There are 245 246 questions tagged wildcard, and 53 with wildcards. I suggest the latter to be the main tag, and the former to be a synonym.