I think the tag is fine.  We should retag questions where it is misused (e.g. http://askubuntu.com/questions/206681/empathy-not-showing-in-memenu and http://askubuntu.com/questions/243799/can-i-rearrange-the-messaging-menu-list) but since it [used to be part of the general UI](http://www.omgubuntu.co.uk/2011/07/ubuntu-11-10-menu-goodbye) I think the tag has significance.  

I could be wrong.  Maybe we are supposed to kill old obsolete tags.