Somewhere on this Forum there is a thread where the good folk of YACF offered accommodation: I have no idea where it is and perhaps someone can resurrect it.
I think this is a better way forward than expecting the organiser to do more work in support of their events. Basically, the organiser provides the event and might indicate if camping is available, YHA/bunkhouse nearby or even if sleeping in the start hall is possible when applicable. But I think that is enough and it is up to the riders to sort their own needs.
Perhaps if an aukbnb button was available as a general resource on the AUK site, it might have mileage (or km), but it might also not be something that some folk would wish to be published.
Would you be interested in being a project officer for scoping the possibility of providing a general resource on the site and coordinating the information? Having such a resource based as a central function, and possibly on a geographic basis would offer opportunities without any additional work for the organisers.
Alternatively, we could use the AUK and YACF forums to list opportunities and to respond to any requests for accommodation.