Of course. I invested my money in LEGAL investition...and suddenly someone changed rules. It is ridiculous...but nevermind. Forget obout taxes
So, if i find a young with money, i can ask up to all his money for a candy which i payed 0,01€?
This is similar to your Legal investment.
in the natural market, if in a deal the opposite side has lack of info, you can cheat him.
buying a player for 1k and sold him for X time his value without training or so it's allowed, but it's simply use the lack of "fox sense" of some new players, so, in your shoes, i should not complain about the lack of info and the timing of this implementation