As many others have commented, I'm asserting that people, in general, who follow the example of painting these bandit crosswalks don't appreciate the nuances of where it is dangerous to place them. If I have erred in crediting you with too little knowledge in this domain, you have my apology.
But before you encourage others to pursue this activity, you probably want to make clear, to them, notwithstanding any appearance of a lack of humility, the distinction between your knowledge and possible shortfalls in theirs.