I did not have time to read through all of this thread but FORCING PEOPLE TO REGISTER TO GET THE COOKIES.TXT IS BULL CRAP!
After sign up/in I couldn't sign back in because my username isn't correct the way I typed it "Technomage Awunes", I hope when I post this to be able to see my own user name so I can sign in via the correct google profile to save the password but if I can't I then hope I can delete my account data from your system.
The new owners of ccleaner are CRAP.
If I get any more pop-up's, ad's or annoying notifications I WILL BE ENDING MY USE OF IT!
Edit: I found the issue with my account sign in - Awunes vs Awuens ... Got to typing too fast ... That's on me.
Edit2: Found that one can delete one's account data in the Account Settings > Security and Privacy