On my Oct 24 roll call, some 'low margin bookings' were confirmed only in April just before the 'culling' - they had previously been waitlisted. Go figure as they say. Which cabin grade I don't know.
Occasionally I have had the thought, that X selected cabin numbers by lottery,
I have no evidence that I have been culled but thinking of cancelling and offering my cabin to a multi-generational family impacted but that would cost me my non-refundable deposit (SOP in UK).