thats HP and no one should buy HPs printers anymore until they stop their doings. Their aggressive behavior towards the customer and lurkin' into paying monthly subscription, data & update politics, mandatory always-on-internet-connection...

Thats on top. So, as an informed individual being, one should avoid HP. The other printer producers do not insinst on registration or wifi-before-first-use politics. But, who knows.

.. again, how can the government find out who you are by having just a code? If there's no mandatory registration (f.e. not HP)? If one knows how to poisen the tracking code? If one use a new/used printer and dispose afterwards? If one use the "neighbor from the first floor" printer?

There is no possibility to find out who printed that, if one takes a little bit caution and have little bit of knowledge. Even print-out-once-copy-many would make the code unreadable (f.e. normal quality and/or black & white) ...

spread the word! W00t W00t! :)