I would suggest not making the routes all publicly available. Perhaps add the ability for the creator to make them public or private. The thought being that some of these routes are area sensitive and may be created only for a specific event etc. Not that I expect a rampant onslaught of people grabbing routes...but it would be good to have some control if roadbooks might cross through private land etc.
My intuition nearly makes up for my lack of good judgement.
Just installed my new trolling motor