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.
Currently it seems that people (on the main site) are listed as not having participated in any tags. (This seems to be the case for me, and for JDH; I didn't check any others.) Is this a temporary thing?
Badges and tags are processed on a rolling basis, and I don't think we should worry about anything related to these until 24 hours have passed.