Pfffffff woah! Some people sometimes just.. why? Good that they were reported, more should do this. I would but I seldom join duty finder anymore and play without friends less and less annnnd less.
Also yup! There sure is. I keep one with a detailed reason for why each player is on it as do family and extended family, my partner included. If this were JP it would be semi public but this is not JP.

When and if I recruit for party finder the list is consulted. If they are on the list it is immediate rejection from party, thankfully I have not had to do this and neither have friends. One can dream that NA or EU might learn from the JP community but alas, I have given up hope.
It miiiight exist there I say with great implication that it does and most of the NA/EU community would not last one month on JP datacenters.