I have not, but I work about 200 feet from Techstars Seattle and am friends with many of the companies from many of the classes there. I also work for Startup W

I have not, but I work about 200 feet from Techstars Seattle and am friends with many of the companies from many of the classes there. I also work for Startup Weekend, so I've heard about a lot of accelerators all over the world. I'm not saying all accelerators are good. Far from it. And I'm not saying accelerators don't have a ton of problems. I just don't think the article you wrote addresses any of them.