We already know who will be let through - the ABP whitelist is public. It's the majority of the ad tech world including the most intrusive native networks.
2. I didn't test disabling but assume that it would work as advertised - I didn't want to support a company that would enable whitelisting/acceptable ads as default in order to build up enough users as a means of extorting everyone else in the ecosystem.
Is this something that you've experienced personally, or is it just from the companies reputations that are on the whitelist?