My Twitter time today is buzzing with screams of publishers who have a Adsense account banned. And it seems like this is mass block your Adsense account. Since writing this post, at least 20 + 70% the Publisher has confirmed that they got them banned from Adsense, and all of them from Pakistan. And below is the email they receive from the Adsense team.
WEBMASTER guidelines: program Specialists regularly review sites in the AdSense program.
This is important for sites that display AdSense to offer significant value to end users by providing a unique and relevant content, and not to place ads on sites with little or no original content. Moreover, it Google ads cannot be placed on the page non-based content. Your site must also provide a good user experience through a clear navigation and organization. Users should be able to easily click on your page and find the information they are looking for.
I'm not sure what precisely could trigger mass-block your Adsense account. But will generally be through their Adsense site that gets blocked, have a low-quality content and offer very poor user experience with annoying ads. And this is exactly what is directed above email from Adsense team. If You have an Adsense account blocked too today, just Tweet me @ loyals so that I can see the more information that could help publishers who determine what actually triggered it.