No...? That's a completely different question than what we were talking about above? The customers of a residential proxy who would be subject to KYC are the people using the addresses -- this has nothing to do with the exit addresses of those who have joined the network.
That's a completely different question than what we were talking about above?
In fairness to me, I did say "Most tools can be dual-use. Residential proxies are also used by malevolent actors to hack infrastructure or financial institutions and let some other poor soul get investigated for it. This is why we can't have nice things."
So it could be Alice. I know Alice has good intentions. It could be Bob, we know what Bob is up to but I will give him a pass regardless because Bob did nice things in the past. But then there is Mallory ... Mallory Malfoid is up to no good. I need to know which IP's are used by Alice and Bob so I can exclude them from my automated protections. Mallory will automatically get rate limited to 16kb/s, 1 HTTP request every 5 seconds and if they bounce around different residential proxies they get redirected to a bathtub regardless of which residential proxy they use.