Yes, and I'm having a change of heart about allowing free market of it, because it would ultimately become unfair as you say, and the only way SE could battle that unfairness is to put a bunch of money and time into anti-cheat software and hardware locking houses, and even then it would not really stop people from profiting off it. Profit isn't exactly a bad thing is really what i wanted to express, but when the supply can be disrupted by tycoons so for the whole world is when you have a problem. Unfortunately the only other option is what hey have done, which is basically punishing everyone. A 24+ hr invisible timer certainly stops black market dealing but it also hurts everyone else, I think Jojoya or Themarvin have the most elegant solutions; ie reducing the invisible timer to 3-4hrs (still works against black market dealing and an easy fix) and/or reducing the number of clicks per hour on the placards (harder to implement but still not a bad idea)