+0.5
I've been proposing this for years now (earlier in Network abuse BoF) and recently did it in policy-sig and there was very mixed response. ARIN has this policy but as per Leslie Noble (ARIN) it is not very successful in their region but she also mentioned that they are planning to make few changes in the process (need to reach out to her again for the update).
For those who were not present there.. here is the transcript link
(hint: search my name)