Press is starting to block ad-blockers, but also extensions like Ghostery, Disconnect, Do Not Track me etc.
Read about the first tests against firefox ad-block users to see how many users of adblockers will disable their protection (because you then may be vulnerable to mal-ads, and the adblock-blocking websites cannot guarantee you a malfree ad experience:
http://www.cityam.com/using-ad-blocker-city-am The tests are meant initially against the 20 percent of ad-blocking users on FF, other browsers are not being targeted for the moment.
Remember the use of NoScript makes that you can fully circumvent this anti-adblock experiment. A pity that the use of NoScript is a minority under the 20% adblock users of the Mozilla browser.
In Germany a judge meant that adblocking is legit, but BILD magazine started to experiment with an adblock wall as well.
Well the real reason is not ads, but the continuous tracking of users to earn from selling their profiles. They are not telling you that, the anti-adblocking is just a means to another end, it is anti-tracking blocking!
polonus