I created...

Lies, you just used another query and improve it!

SHUT UP! *bom* *bang* *thud*

As I said, I modified a query in the Data Explorer to find lonely tags. You know, those questions that only has a 12.04 and nothing else. Here it's:

http://data.stackexchange.com/ubuntu/query/156001/find-lonely-tags?Tag=12.04

http://data.stackexchange.com/ubuntu/query/156001/find-lonely-tags?Tag=13.04

http://data.stackexchange.com/ubuntu/query/156001/find-lonely-tags?Tag=12.10

http://data.stackexchange.com/ubuntu/query/156001/find-lonely-tags?Tag=13.10

http://data.stackexchange.com/ubuntu/query/156001/find-lonely-tags