My Google Adsense Account is disabled

Today my mail told me that Google had disabled my Adsense account. Hmm!
The mail said

"After reviewing our records, we've determined that your AdSense account
poses a risk of generating invalid activity. Because we have a
responsibility to protect our AdWords advertisers from inflated costs due
to invalid activity, we've found it necessary to disable your AdSense
account. Your outstanding balance and Google's share of the revenue will
both be fully refunded back to the affected advertisers.
....."

So something went wrong. I am not a great geek to find this out. And Google will not explain and why should they. It's their program.
Of-course there is a chance for me to appeal against this via an appeal process.
I will not approach them because my earnings were something around 16$ since I started blogging. Not worth wasting Google's time :)

Anyway my blog is slightly lighter now and some advertisers are richer by 16$.