Anon lease put (lb) next to the number post you are linking back to indicate "last bread" so anons know if they click it, it will send them back to last bread, like so:
>>2483529 (lb)
Also I think you are right about it being ==notable=
but to be taken seriously and to save the baker time, provide a brief summary or title as to the subject matter of your "notable" nomination.
If you do that, other anons usually second and third your notable nomination.