Yes, I have read that as well, and I can tell you, you are not the only one.
The tradesystem is flawed, I don't see how offering a shitload of trash for diamond armour and other rare/uncommon items in the end is a great thing to have.
Only thing I can see is that this whole system is completely overrated, and only will be used to get items more easy, with just a little work.
Especially what makes me worried is that things like hotels are mentioned in this thread, and I know how that works/will be used.
The only thing I can see that people want it, is for their own benefit and great advantage.
Nor that I see why we need it, and you expected a reason from my side, here you have some, but you give me no reason in return to have such a system.