pretty sure its against the rules to sell items that have to be bought with real money
also gold is selling 1M:0.25 which is around 170 fg at current key price in market
Except the keys can be bought on the market for in-game currency and nothing you said is even remotely true, as even indicated by your own post about how KEYS CAN BE BOUGHT FOR IN-GAME CREDITS. So not sure what the troll post is about? Probably best to report it.
And if you disagree with the price feel free to make your own thread if you have a different opinion on what a fair price of something no one else currently offers is.