[MaulingMonkey]

You're reading something very different into jnbiche's words than I am. I'm reading it more like this:

"[Ooooooh,] Duh[!], it's fake[!] [forehead smack of realization and insight]."

You seem to be reading more of a dismissive "Duh, I knew that, why are you telling me what I already know?" into this, whereas I'm reading a much more realization-striken tone.

"Obviously, it's possible to set your system clock back."

Thinking out loud through the realization and insight as it occurred.

"I was so intrigued I wasn't thinking clearly, even after I pointed this very "attack" out during the Ed Snowden GPG affair."

Explaining the circumstances of and implicitly acknowledging and admitting to a mistake or fault, continuing revelation. An introspective done, not a defensive one, not offered up as an "excuse".