Don’t know why this wasn’t announced already. It’s functional enough to be used publicly and be useful. Probably related to query volume / performance, but I hope this gets pushed live soon.
One thing I’ve noticed is that terms seem to compound the results. Example: “icon” returns 45 comments, but “icon footer” returns 60 comments. It would be more helpful to users if multiple words were queried as “icon AND footer” not “icon OR footer” so more complex searches can narrow the comments returned.