Stack Exchange network consists of 177 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
The Data Explorer URLs still use the old name of the site, "Jewish Life and Learning", instead of the new one, "Mi Yodeya". E.g., http://data.stackexchange.com/jewish%20life%20and%20learning/queries.
I agree that jewish%20life%20and%20learning should be scrubbed.
The convention we should follow would involve changing the slug to judaism, making it into data.stackexchange.com/judaism/queries, as Double AA suggested.
I think this is status-bydesign. Consider our cousin "Seasoned Advice": their URL is http://data.stackexchange.com/cooking/queries.
This might change pending this other request, but in the mean time, I think this issue and its resolution is very parallel to here.