Re: The lady doth protest too much methinks.
Sure, because all I need to find you is this:
1) Logs of signal strengths of various wifi nodes in the region which can be crunched to give me an approximate location for you.
2) You to slip you and get your face on video
Combine with things like "paying by debit car/visa/using bonk-to-pay transit" or other things and I can narrow down "who you are" pretty easily, if I've a mind to.
If I have the cooperation of other international policing agencies to allow me to gather metadata enough to even narrow your initial access point then I, personally, can pwn you with just the resources of my local police force. And I'm not a cyber security expert.
Do not fool yourself: being fully anonymous on the internet is a damn difficult - and increasingly expensive - job. It involves laundering money, using mules to buy burners and disposable credit cards and various other things to accomplish. The last time I ran the numbers, a single session of true internet anonymity would cost you 4 days or prep time, two mules and $7500.