Ken....You can run but you can't hide
The above measures have now made you totally anonymous, right? Well, yes and no. They would certainly make it difficult for anyone to identify you personally but it can be done. If you have engaged in illegal or malicious activity and it has come to the attention of the authorities then that activity can be traced to your ISP account. A common feature of sites everywhere is logging. If you are reading this page then there is already an entry in the site logs here showing that a particular IP address came to this site at a particular time and accessed this page. The log will also show every image, page, and program accessed during the visit. That IP address can be traced to a particular ISP or proxy service. Normally the trail would stop cold at that point because these entities do not release any personally identifiable information in accordance with their established privacy policies. This means that I know that someone visited but really can't determine who. If the activity was illegal, however, site logs can be subpoenaed by a court of law all the way back through the chain and your ISP account can be positively identified as the source.
Hope this answers your question
dl65