Insincere Compliment is one of those little thing that we tend to also ignore.
The bible talks about taking away the little foxes that destroys the vine in Song of Solomon 2:15
Proverbs 20:19b the Bible warns us not to meddle with him that flatters with his lips*gtg*
Psalm 78:36 & 37 tells of those who even flatter God with their mouth, when their heart is far from what they say
Telling your colleague, subordinate or boss that their report, letters or presentation is in perfect arrangement even after you've notice there are one or two incorrect spellings that needs their attention, is an insincere compliment