Reason:
When searching for posts of Jinx from League of Legends, the 'jinx_(lol)' tag would be easier to use rather than typing in 'jinx' and 'league_of_legends' in the search box. Also so people don't see Jinx from Teen Titans in the search results.

jinx_(lol) is already a tag, not many people seem to be using it though. I'll try to go sort it out.

Huh, looks like it's already had the long edition aliased.

Looking at the alias list, the alias happened eight months ago, meaning this is nowhere near "New."