The fact that you can say this just shows me how delusional you are about the average PoE player and average gamer in general. You probably already know by name most of the people who actively use exalts during ordinary play. I stopped at level 90 last league and still ended up top 2000 if I recall correctly, and several of those characters would be alts from the really hardcore players/people racing to 100 that died along the way. And I never had enough money to ever even dream of using exalts myself, even after finding and selling a Shavs. Even if 400 people can piss exalts away like candy on a daily basis, PoE is still peaking at 40k players. That's 1% of the player base. That's 99% of players not using exalts. They aren't a legitimate crafting tool beyond "the 1%", they are simply currency. I think you simply do not realize how rich you are, and how poor most everyone else is, on average.
Even if coins weren't tradeable, you'd be able to sell offers, I don't see how GGG could possibly avoid that. Make him disappear if you declined his offer? That would just 100% screw over anyone who played in a party though. I think, if coins weren't tradeable, it wouldn't solve the issue of t1s being more common, it would just have a lesser impact on more common uniques, since most people would probably just keep saving coins for the big cash out, rather than buying stuff like whispering ice for 1k. In the end every Shavs offered would probably still get bought. The only way around Cadiro not making good uniques more common is to simply have him not offer them at all, I think, and if he never offered anything REALLY good people would just cry that league sucks and there's no point in farming coins at all.Which would be fine is you had to farm the coins your self as the choice to buy or not would actually be meaningful. As it stands now you can sell the offer if you can't afford it or just buy coins if you don't have enough when you get the offer. This is why it's so harmful for the economy as most good offers are being accepted thus increasing supply at an insane rate.
@Vespian
My point was that rare uniques, sets, and runes were all too rare to be found by playing "normal" d2, and I had this discussion before with someone who claimed to have self-found farmed infinity and enigma and a bunch of other impossible to get things. If we're talking about d2 in the last couple of years, sure, they massively buffed the drop rate of everything because the game is already dead so why not. If we're talking about d2 when it was relevant, I call 100% bullshit, poor memory, or not actually playing self found and trading, even if only for a few things. D2 was no friendlier as a self found than PoE is, I cannot imagine suffering through d2 as any class other than sorceress if trading weren't possible.