I am testing ABP 2.
When you install ABP it enables two subscriptions by default.
One is your regular subscription for blocking/hiding content and the other is the "acceptable advertisement" subscription.
The second one is hidden so you cannot see what rules it contains unless you set the "about:config" preference on "true".
Wladimir states this is for "usability" issues but IMHO it makes it less "transparent" and should be avoided.
You can "opt-out" and opt-in" both subscriptions in the same way.
Like I said above, all this has always been included in the very mechanism of subscriptions.
No news from a technical stand point.
What is new here is ABP directly involved in agreements with advertisers and getting money for including them in the "acceptable advertisement" subscription.
IMHO the above procedure makes zero difference.
Thanks for that. I agree that is similar to prior behavior, but for people that click-through, their privacy is at risk, and the project does fulfill its normal purpose (Blocking ads.). Secondly, I strongly disagree with not being able to see the rules in the subscription. Like you, I believe that should be avoided, at all cost if necessary. Transparency is important... Something else important however, is what will happen upon update, in an existing installation. If that subscription is automagically selected, as has been suggested, Wladimir modifies user settings. That's a fairly large no-no