I\'m not sure whether there was a notice somewhere asking people not to post quest solutions etc. Something rings a bell. I\'m not sure wheter a publicly available map would be counted though - better ask a dev before you made one publicly available.
That aside, I do think that a basic map would be necessary, but it shouldn\'t help people with quests etc more than would be realistic.
I don\'t think that anybody thought of a map in MB- the game world was far too small to need one, but in CB and later releases a simple map would come in useful. I wouldn\'t expect anyone to take offense at your making a map for your own use, or for the use of your guild.