that is my point, the only thing WU is doing now is >
person A buys (or proposes?) charter, allows other to join, splitting cost of charter
(that is not a shuttle, is not scheduled, and is not selling seats)

WU is not doing free empty legs are they?

more operators seem to be selling empty legs directly, which can make sense

btw how does JS sell [some] seats on shuttles? is it because it is to members?
IIRC there are/were some kind of US regs about reselling seats on charters
or perhaps it just had to do with owners of planes and their operators?