CancelFormForCrafting
This very lightweight addon removes your shapeshift form when you try to craft something.
When you try to craft and are shapeshifted you would only get the error message "You are in shapeshift form" normally. The addon removes your shapeshift and lets you craft your stuff. It is enabled for druids only.
The addon is disabled while you are in combat, so it should not cause any taint.
Since the described behavior was fixed in retail, this addon is only useful in classic WoW.