I checked the first exchange from this list:
2.1 Hellex reserves the right to request valid government-issued identification documents from your country of residence
That makes your never-KYC list look like it's just marketing.
Exchanges don't always actually have the same policies as their ToS. One example in the other direction is ChangeNow which has (had?) ToS that stated they offered no KYC refunds, yet they didn't. That's why on
OrangeFren.com you'll find a little warning about them being known to violate their own ToS.