He didn't name a single name. If he really believed this was so certain, he could have. Unless he's trying to make them do something, the only reason to keep names out of it is because he thinks this might be libel.
Yes, but that's the thing — you can't get sued for "obvious names." Even if he's completely making this up, if one of the obvious suspects sues him, he can just say, "Oh, no, I didn't mean him."
The comment I was replying to said, "his claims are laid out clearly without any weasel words. Either this is happening or it isn't." I disagree with that — Arrington is not laying it all out here as a black-and-white truth. He's consciously omitting facts in a way that happens to shield him from repercussions if this is false. As a traditional dead-tree newspaper guy, I'm very familiar with the ways reporters fudge their claims to avoid being responsible if it turns out to be crap. That's what this sounds like to me.