It's also somewhat "lank-proof", so you won't have to suffer a constant stream of no-technique strong dudes hiking the thing while you project. They'll pull hard, swear, fall off a few times, and go home. Leaving you in peace in this nice hidden corner of the forest.
No Climbing Today!
^
Rain sucks, but broken holds suck even more. Remember, never climb on wet rock in Fontainebleau.
The sandstone becomes brittle, and pulling on it will ruin classic problems. Drying it doesn't help, because it's still wet and weak inside.
All you can do is wait for better conditions.