Yes, I don't think credit score from CN is the right solution to the problem though. The key thing we would want is persistent removal of rewards/privileges for disruptive players until a player can show they've reformed and are neutral or positive. The downside of a basic credit score system is that it also creates a lot of stress and abuse potential for regular players (e.g. if I play badly will someone report me and take away my rewards?). Generally I would prefer most players not have to worry about the system and then we celebrate positivity (e.g. like honor).
Edit: let me expand on this a bit too. We've considered whether to bring over the CN credit system after launch if it had a positive impact. So far we haven't seen evidence of that and negative behavior is a big pain point in CN as well. We considered it pretty risky to just deploy it to the rest of the world when our intuition was that there are some negative abuse cases hiding in there. So we made the call to run it only in CN and see what results we got. Generally we believe we need to level up our detection of negative behaviors first before adding on systems like a credit score or honor system.