Thanks for all great advise.
Yes, I already use Smac but all mac address hiding tool just sproof LAN connection and the problem is I still use mobile broadband. Sproof method not work at mobile broadband.
Hope google not track youtube user.
This thread is a huge eye opener for me.
I thought that just by changing my ip and clearing the cookies I would be leaving no footprint but clearly that is not the case.
I researched more on this. For all of you how want more info here is what I found:
-This can't be done on the server's side. So it can't be done with php etc.
-IMO its quite possible that installed google applications: google chrome, google desktop etc can send out your MAC to their servers. I know how paranoid this sounds, but knowing how information hungry they are its quite possible that they are doing this.
-This is a huge problem for the people using automation tools. Most automation tools just run on top of IE.
So while uploading videos do you need to change our IP and Mcaddress or just at the time of account creation?