Why doesn't mempool.space discard old unconfirmed #Bitcoin transactions from their mempool unlike others, e.g. Blockstream? It seems that mempool.space keeps them forever without rebroadcasting. It looks like their custom policy.
cc: wiz (npub1uvl…q3sd), mempool (npub18d4…6lt3), softsimon (npub1hvw…5e8q)