I really dislike this community sometimes. Instead of sperging out when you see the T word, read on and see exactly what’s being proposed. I think what he’s saying could be more accurately described as exchanging, not trading. I.e. not trading of items between players but rather sending that item to the scuppers in exchange for a cash value.
In any case that would be undisirable too. Use junk legendaries to transform and lower tiers for power, I think the fusing system already captures all tiers of items for alternative benefits besides actually using it. Maybe something like this for items already upgraded to mythical would be useful since the fusion retention from fusing old myths is disgustingly abysmal.
It’s not like it matters anyway our proposals are never accepted no matter how popular. Draw a pretty picture and they might use it and give the animators the day off though.