jpch - 4:27 pm on Jun 11, 2013 (gmt 0)
In other words, is there something I can do to get my account back to "normal" (with "green lights on") the way it used to be?
I doubt it. The new normal is more oversight by Google of their TOS.
Regarding the lack of a warning for this latest incident it happens. It happened to me several months ago on a Friday night. My appeal basically pointed out all the things I was already doing to comply with their TOS plus the various reviews by AdSense employees over the last couple of years who all said the site was fine. I didn't change a single thing. Monday afternoon ads were turned on again...no explanation at all. I personally think a robot disabled the ads and a human turned them on.
Bottom line is if you use Google or any other ad network you have to understand it can end at any time for just about any reason. Some ad networks want you to sign a written contract but I've always suspected that's more for their protection than yours.