It's startling to read that in this day and age, some employers are using such binary decision making methods during the interview process.  Whether someone offers to wash up their coffee cup or send you a thank you email following an interview shouldn't sway the hiring decision!

With so much work being done to filter out unconscious bias throughout the hiring process, employers should be working hard to factor in fair role or culture specific assessment techniques through robust job analysis, rather than basing hiring decisions on gut feel or personal preferences.