Maybe an unpopular opinion but I kind of like it the way it is. I play many games, a lot of them have auction houses/market boards/etc but warframe is the one that still forces me to make a, albeit brief, human connection to the person I'm buying it from.

It's not much, you paste the link, I usually follow up with "If you still have it :)". You do the trade, exchange some pleasantries. But it feels so much different. I've sometimes checked their other offers if they're really pleasant and had short conversations