A curious approach, but I like it! Wonder if this means just publishing vulnerablities without contact with curl team would be responsible (you have no other path to tell vulnerable users)
Just publish early due to a documented lack of cooperation. They don’t have to answer, but you dont have to wait. Naturally some people find that this offensive since this puts a price to that “bliss”.
And if you find something halfway through the month then oh no two weeks to reply, that's basically a standard business interaction at that point.