The better question to ask is : If you are a buying/donating customer and you discover that every 2 weeks whatever you thought you bought/donated is not going to be what you thought it is. Will you continue to donate? If you do not donate/buy. Who cares what your opinions are. Enjoy the freebies while it last and move on. Plenty of free internet games out there.

Not the same with drugs. If everyone drugs, the better and/or stronger tank wins. Weaker players will have to spend more on drugs to keep up. Drug often but use it wisely.