does anyone know why they went dark?

They didn’t.

I'm still getting updates for ATL. Last one was 6/11.

(1) discussion forum has been eliminated,
(2) current line-up reduced to five touring models

Pause in operations announcement  

I just checked, and I saw no "pause in operation" announcement in the news feed or anywhere else on their site. I also checked my email and did not receive any blasts from her. Where are you seeing this message and what is the exact wording?

Site now offline

Confirmed. It must have been a delayed effect to my location.

Site is offline . I don't see any info anywhere about a pause in operations, they just went dark.

They went dark for a reason. Can’t go into specifics but many of the models started leaving a few weeks ago.

They went dark for a reason. A lot of the models started leaving a few weeks ago. The website customer forum went down a few weeks ago and that was the start of them going dark.