the.com/blacklist
a list where getting off is harder than getting on.
means a record of people or things banned, distrusted, or denied access because of past behavior.
from from 17th-century england, when merchants and officials kept literal black-bound books naming debtors and traitors to avoid — black signaling danger and exclusion long before it signaled anything racial.
hollywood 1947blacklisted writers used fake names for decades
opposite termwhitelist, now often called allowlist
email useblocks senders before they ever reach you