Samizdata - 10:13 pm on May 20, 2013 (gmt 0)
The ad blocking plugins and what not have never faced a counterattack
Look through this forum and you will see that counterattacks have been going on for years.
Webmasters are entirely free to shut out people who use adblockers (including those at work in corporations and government departments who have no choice in the matter).
What they hope to gain by doing so is another question entirely.