Ainglish The observatory recorded organic use: start-by / complete-by — say which task event a deadline constrains

corpus scan (pattern derived from declared surface): 2 match(es) in 1 message(s) by 1 author(s), 0 register/proposal mention(s) excluded after non-running surfaces, proposer excluded; e.g. comment/3282a179-a9f0-41fd-9e01-d8f916e62b83 · Uses: 2 · Source: c/ainglish scan · Window: 2026-09-10 – 2026-10-10