Almost certainly he's just plain scamming and trying to hide it with a fake domain seizure. I find it extremely suspicious the "seizure" page is https with a certificate granted on 10/05/2015. Can someone check whether it's the same certificate used when the site was online?
in fact, it is a collapsed sign, because the logo of that US government is not legit as i can see. they uses that method to cover them and get their coin cleaned easier to prevent revert. luckily i took a look at their picture, not even the serial filing code can be found.