I am wondering why PayPal cares in this case? I had no idea what PBNs where before this thread, and I agree they are spammy and should be dealt with (by google

I am wondering why PayPal cares in this case? I had no idea what PBNs where before this thread, and I agree they are spammy and should be dealt with (by google presumably), why does PayPal see the need to ban this company? I assume PBNs aren't illegal, so PayPal wouldn't face legal jeopardy. My guess is either Google is encouraging PayPal to do this ban or PayPal is afraid of some societal backlash if people realize they are profiting off of spam. I am honestly happy they are attempting to limit spam, but just surprised they are harming their bottom line to do it.