Maybe I misunderstand. Let's say I have 5 sockpuppet accounts. I send 1 BCH in tips from A to B to C to D to E and back to A. It only cost me 1c in tx fee or so. How do you stop this?
I see what you’re saying. 1) they would still have to buy 1 BCH which helps the system 2) there could be a weighted system which takes into account tips over how many users