> to get back to the original topic - an obviously cracked screwgate / maillon should be removed
or maybe just backed up with something , another maillon, krab or rope loop.
The cracked gate is probably just some goof over tightening it. Now effectively " gate open " strength . So discounting corrosion effects probably 25-30 % of original gate closed strength but probably still quite adequate . Definitely so if backed up.
Hopefully Mike or Jim will be along to substantiate my musings.