I think everybody on this topic already understood that you don't agree with this, point taken, next.
There is no reason to be unable to trade with alts, as stated before by game admins/devs, you can always play one gen as an Archer, Fake Peasant, Happy Farmer, Ninja, whatever, and still make lots of monies on you main character.
If you lost time in your alt(s), they should have the same type of maneuvering and freedom in the market or at least trading with your main (even if in the presence of any type of penalty).
I didn't make alts for every possible build just because I was bored. I made it so I could test every aspect of the game without compromising the integrity of my main character, having it battle ready for guild purposes.
Now I have one my alts in gen 3, with a loomed poleh4x, and running all the time heavy geared, cause it has monies for it, which could be applied in something more productive..
PS: Bleh....