I agree, I don’t kid around with safety. And if anyone else does, I will stop them or get hurt trying.
Besides the obvious argument of not hurting others, bows are in a weird legal limbo in a lot of places. If archers start behaving irresponsibly, then that limbo vanishes and bows will be regulated like firearms. I would really like that to not happen.
According to https://www.infocusarchery.com/advice/a-completeish-guide-to-arrow-spine spine is the deflection in 1"/1000. As in spine 730 means the deflection is 0.73"