Please do something about those darn people blocking and parking themselves right on top the parcel lady in Commons on Mangler. They are intentionally blocking her. It is impossible to use her.
The best solution would be to have the parcel NPC in Commonlands standing on a crate so that everyone could interact with her. Not sure it will happen, because that would require effort on the part of the devs.
U interacts with whatever is center screen like you clicked on it. Having an NPC targeted, U does nothing with them unless they happen to be.. in center screen. Something like /opentrade which would work with NPCs or PCs alike would be useful in a few cases.
There have been inconsiderate people standing around stuff like this for years. It never occurred to me to blame the game designers and demand they fix the "problem".
About the only changes you're going to see immediately are adding kittens to the loading screens, guys. C'mon..