Bakers generally archive the notable posts to the Best of Bread thread when they remove them from the General notables list -
Best Of Bread >>311157
The BoB link is always posted at the foot of the notables section. Anon's can always catch up there if they've been away for longer.
Comms anon also copies them to
Archive of Notables >>>/comms/225 (Batch 740~ present)
So, we have 2 backups, however as soon as the old general threads slide off the board, those links to notable posts are rendered obsolete, so the only way we have of archiving them proper just now is in the complete bread archives.