Alex, I'm just going to add a link to the thread already here:http://waygook.org/index.php?topic=998
The group's been around for a few years, and I think most people have at least heard of them. They got their start based on a website called "English Spectrum"---hence the name---that had content considered demeaning to Korean women, and since then even though they've tried to make themselves out as defenders of Korean education, their motives have been to keep an eye on foreigners and break up interracial relationships.
What makes them more significant than just a group of racists is that they get favorable treatment in the Korean media and they have the ear of some politicians. I'm not interested in shutting the group down, so far as they aren't doing anything actually illegal (threating, stalking, harassing, committing violence). But what I hope this coverage in Western media does is finally give us an avenue to challenge the hatred and misinformation that is behind these regulations and behind the negative stereotypes people hold of NSETs. Though people have discussed this on blogs, messageboards, and even in Korea's English papers, it's unlikely many Koreans have taken notice.