I knew someone that worked at an Audi dealer that can recognize everyone's voice and associate their purchase.
I called him 4 years later to inquire about a new Audi and he asked me how my TT was treating me and if I was ready for a bigger car(I mentioned that I was going to start a family soon).
I wouldn't damage public property. You certainly can improve on it. A couple of weather treated 2x4s would raise the seat up, just high enough to clear the armrests. You wouldn't draw attention to yourself while grinding, but instead it would look super clean and nobody would report it.
I have my own company that helps companies websites. There is a company called 6sense that scares the crap out of me. They are able to use Facebook, insta, and reddit. They are able to assign an id to you, even in incog.
They have some crazy algorithm that can eventually match you to the real you. Then stick you in a cohort to sell to you.
Collectively Russian are good people. It's all Putin's fault.