That blog post was actually made in response to a developer who made an idling program which allowed you to gain random drop items without actually having to be physically in a server. It “masked” you as if you were actually playing and you could gain items. So everyone that was using it had all of their items removed and also they came out with that new halo hat. IMO, it’s not really cheating; no different than the people who sit in idle servers to get the items. Only benefit is you don’t use as much resources running the program vs. being in a server.
btw, if you cloak as a spy and have the halo then it can still be seen.