Is it really necessarily to put the name of the DLC directly in "game name" tag?
When I wan't to follow some game I follow the original "game name" tag so that particular game is highlighted on main screen.For me it doesn't really matter if the game is for PC,XboX or what DLC I use those tags just as additional question info.
If tag is formatted as fallout-3-the-pitt and someone is to follow complete Fallout 3 series he would than have to follow 5 different name tags for every DLC.
If tag is formatted as fallout-3 and the-pitt someone who wants to follow just specific area of a game can still follow it just with that secondary tag.
There is also the issue of name length,longer the name more abbreviations it needs which is a bad thing since everyone makes their own abbreviations.