It seem utterly mad that a ticket exchange is not open at least when above a certain % of capacity. I am sure that would result in a higher ticket income for the club.
Could you please explain to me too then please, and I mean that sincerely.
I'm not sure why the club would want to re-sell season tickets seats, only taking a small cut, when they can sell from their own pool of tickets from which they receive the full ticket price themselves.
(The slight exception is when there are only single tickets remaining and the ticket exchange could help facilitate sales to those who want pairs, but you're going to be in the very high 90% range for this, and it feels like you're alluding to a lower threshold)