Why does this obvious scam continue to get headlines from slashdot? Or anyone else for that matter. This is nothing more than some crooked and/or delusional people preying on the credulous. Without the resources of a nation state backing the project there is absolutely no way this could possibly happen. The technology to make it happen does not (yet) exist and the organizations who are capable of developing it (read NASA and peers) aren't involved with any of this. Furthermore any credible mission to Mars will cost tens and more likely hundreds of billions of US$ to even have a prayer of working at all much less in such a ludicrously short time span.
Not entirely true, I think a private organization could go to Mars, but it would have to be a big established organization (like a Boeing, or maybe SpaceX in 10 years) who has a lot of credibility, expertise, and resources to throw behind the project.
I don't think Mars One has a chance because even if they had the capability to pull off a major project like this they don't have anyway to demonstrate that. And if people aren't convinced they're capable they won't attract the big money and expertise they need.