No I am not wrong. No one said that ISPs dont track through cookies and other means.
What i did say though, is that the probability of the ISP allocating anytime toward someone that downloads a book due to copyright issues is not going to happen - as you asserted and what i responded to. Nor would law enforcement barring some egregious circumstances
If you werent a wannabe smart guy you would be able to understand a flow of conversation and what the reply was saying.
Only if a certain "crime" is on the governments radar would an ISP do anything (read, be forced) - like in your Napster example. ISPs didnt give a fuck until the government wanted to make it a problem.
Wannabe smart guy.