Historical clue formulations

• Unappreciative sort — 2018-03-18
• Unjustified complainer — 2003-04-05
• Bad houseguest — 2003-02-16
• Thankless one — 2002-05-24
• Thankless wretch — 1995-04-27
• Sore winner — 1995-01-07
• Unappreciative one — 1994-02-03