So you didn't read any of the stories linked in the comment you replied to? First one, top of the page:
"...including more than 9,000 files that users could download directly from the FBI. Some of the images described in court filings involved children barely old enough for kindergarten."
That's what the site had before the FBI took charge of it and replaced the CP with malware. Where's the evidence that they distributed CP and not just cp.jpg.exe?
In the court filings described by the previously linked stories, one of which I quoted in the comment you just responded to. What do you think they were charging people with, intent to download cp.jpg? Are you having such a hard time believing that the USG would distribute CP that you are mentally blocking all the evidence available to you? Because I have bad news for you, they've done much worse than that.
They kept the site online so they could distribute malware to people who viewed it. What's the actual evidence that they distributed CP?