No thanks. Pointless suggestion.
Pointless reply.
Ironmans can't trade either way. Would you explain it more?
Ok, I will explain to a brainless idiot why it is not needed.
To add additional game mode with just not using Bank, only your inventory when there is at best 100 players around... Give me a break. Hardcore Ironman would probably be more attractive than this.
Ultimate Ironman is just harder game mode, that's all. You can actually do it yourself. Use bank to swap items into notes and you're good to go. Tomtim1(player name if it's sounds to you familiar) is good example for you, cause I saw he played Ironman before Ironman was even released. You can do any type of mode your into. Unless of course, Hardcore takes way more than just try it out. it's YOLO mode actually.
Now, I'm done explaining my point. Use valid argument as to why you think my reply is still pointless.