Of course we all care. Reports such as latest one seem to be getting less frequent, probably because other clubs are taking more precautions and thus putting off would be burglars and because so much has gone before, its possibly getting harder to fence models. Tools are different, just take them along to the next boot sale.
If there are no or few ID marks and its a fellow model engineer, an engine could have its appearance changed either a different colour paint or simply change the logo from BR to GWR or vice versa.
Best that we can all do is probably to go and see any Speedy or Springbok type design for sale and see how well it matches photos of the stolen example, or not. If you think yes, go away and call local police.
From the clubhouse photo, it looks like no window protection. Need secure shutters to (a) block view of contents, (b) prevent entry. Maybe belt and braces; weld vertical 10mm steel bars to the inside of the windows, taking advantage of the steel construction. They could/should have an alarm which uses a sim card to auto dial the alarm company and a nominated member. Really good padlocks on the door and at least two preferably different makes or at least not with a common key.
John