I like the last paragraph of Bob Murphy's latest mises.org piece:

The message of "mainstream" libertarian agencies such as the Institute for Justice is the familiar, "Although well-intentioned, sometimes government regulation goes too far." This message, though palatable to the average American, is not an effective long-run strategy. Unless Americans realize that all government regulations are violations of liberty, which represent nothing but a dishonest means of gouging consumers, piecemeal lawsuits will never bring justice.

He's being too nice, actually. Mainstream libertarian's marketable platitudes are an intentional sellout, pure and simple. Though I would not call these mainstream agencies - such as the Institute for Justice - "libertarian" by any means.

Look at IHS for some of the most egregious selloutism around. I've heard from several students that their summer seminars are a joke. They'll sit around watching movies, or parts thereof, and then the students are made to sit round afterwards and discuss touchy-feely aspects of the movie that focus on social-cultural notions like multiculturalism, feminism, sharing, and the like.

Then these students come to the Mises Institute to learn what real intellectual rigor and study is all about. Listen to a David Gordon seminar on, say, the errors of teleological Darwinism or Antony Flew vs. John Rawls on justice, and then go to IHS and "sing a song" or "compete in a slam poetry competition" or discuss "the literary value of Southpark." I am not kidding: some of it is even on their website.