Historical clue formulations

• Simply unacceptable — 2026-05-26
• Unacceptable — 2026-04-10
• Violating the rules — 2026-02-14
• Unacceptable — 2025-11-02
• Against the rules — 2024-10-01
• Simply unacceptable — 2024-06-17
• Proscribed — 2023-06-17
• Totally uncool — 2022-11-27
• Taboo — 2022-11-04
• Unacceptable — 2022-04-04
• Taboo — 2019-05-07
• Unacceptable — 2017-11-23
• Proscribed — 2017-10-19
• Improper — 2014-04-23
• Against the rules — 2012-06-19
• Unacceptable — 2011-10-15