Another suggestion would be to be able to use item locking on them. So if you lock them you can't use them.
I've totally done the motif thing before too.
If they added this, I'd rather see this behind an options flag since I've been playing for 2 years and have only read a motif on the wrong character once or twice. This did use to be a huge issue with Master Writs when they would start the quest as soon as you opened your crafting writ reward but since they fixed that, I haven't had an issue.
I do understand the need but it would be annoying for me to have to click twice just to learn a motif, recipe, or blueprint.