Right now on serverfault I'm ignoring windows stuff, because I'm not a windows guy. The problem is that "all" windows tags have duplicates.
Examples: windowsserver2003, windows-server-2003, windows2003 (and the same for 2008), sqlserver, sqlserver2005, mssql, ms-office ms-office-2007, visualstudio, visual-studio, windowsxp, windows-xp, etc..., etc..
Or should I request that these tags be merged? I hereby do so.