Sorry, but this is ridiculous. Ironman mode is intended to be a standalone experience. I agree that I prefer using my time instead of real life currency to purchase status if I can help it, but don't invest in a main which is an Ironman if you're not in the mindset to get everything on your own. Like, absolutely everything.
"They", as in the devs, should invest in adding a npc where you can revert to a regular game mode type (needed), and (optionally) cementing your stats in the Ironman Hiscores (lol what Ironman Hiscores ikr?) for when you feel like giving in and not wanting to make another account. But they have more important things that they need to tend to.
Long story short - Trading / Staking is a form of player to player interaction, Ironman is about restricting those interactions in a way to make it a single player experience.
I'd suggest you suggest something along the lines of a "Duo" type account if you still agree with this post you made being intoxicated. But that again is something to be thought about, because like Ironman mode, it will only cater for a small margin of players, and would probably only be used by existing players with friends, and thus not being highly prioritised. 'They' will want to spend a lot of time on something that will potentially bring in revenue from player's interests. Which isn't necessarily a bad thing.
Anyways, Ironman is Ironman. If you're also that interested in this suggestion you made, maybe DIY with two normal accounts if your friend(s) is / are willing and make a vid or post on here containing images of your progress with the "Duo" mode account. IDK.
Sorry if I sound like a dick, but I hate people fudgein' with me Ironman mode. Have a good day.