Please make trade crates MUCH lighter!

Indeed.   Simply making (most of) them lighter would basically solve the frustrations around crates with little to no extra intervention required other than "moving the decimal place one place to the left"

I can understand them wanting to keep the "money crates" (T3 materials, plywood, ingots, etc) at normal weights as a matter of balance for silver generation and supply, and they absolutely should keep those as hard or limited to move.    However; there is no real good reason to make the Junk, T1/2 crates as annoying to move as those.  

Let people make and move all the junk, exp crates they want without much hassle.  Trading exp scales so hard, so quickly that there isn't a meaningful advantage/bonus to most people who try to raise it.  It keeps a lot of the materials markets moving and it's a goal for people to chase.

Careful what you wish for,

PA be like "reduced weight of trade box's by 50% to account for the reduced weight we have reduced the value by 50%"

they are timegated, no reason to cut price.