Actually, it really wasn't anyone's fault but our own. The whole thing started as an experiment, and due to the reaction it got on /x/ it spread to reddit, then to unfiction, and to blogs all over the place.
What really shut it down was, the writer wanted the project to grow with the audience, but that became really problematic. We wanted the site to be something you stumble upon, and get a feeling of "there is something not right with this website". A feeling of discomfort. That's the root of a good ARC, feeling like the world you're getting involved with is real. This was especially difficult considering how fictional the world is.
Regardless, all of those conflicting subjects came together, and it was decided by all of us, we needed to sit down and rewrite what we had. Really, at the start, there wasn't a story except for the webcomic story. Everything involving M3Ps grew around what people did. MAv3rick was a product of that too.
Really, in terms of websites, the problem was the project got too much attention too fast. When it started it was one person, then it grew to 10, and now its about 5 or so. But that still wasn't enough because we all have lives outside this and it was a hobbie for us. We couldn't keep up with what we wanted to do.
And sadly I can't offer art, because anything new is pretty much all spoilers. I can tell you were working on music though, a lot of it pretty neat.
And lastly, another reason we are taking the hiatus is so people forget about the project, we felt it was getting the wrong kind of attention. An ARC relies on it's audience, and we were being bombarded with waifu fags. And that was because the direction the story was going. Our own fault really.