It's morally bankrupt that the club have built a system where the only official way of selling your ticket is to use their exchange, where the club doubles the ticket price and pockets the difference, profiteering from the same ticket twice, once at a massively inflated price.
They are running their own secondary market.
If you support this practice then you're a fucking idiot.
I try and sell my ticket on here when I can if I can't make a game but it's obviously a bit of a faff and there's risk involved. The club know this and exploit their "convenient" closed exchange system.