I think differentiating between kindness and niceness like this confuses the point more than defines an outcome. I prefer the understanding “love thy neighbor” as being “truthful, honest and impartial.” Ascribing an ideal emotional outcome on the part of the recipient may always result in a capacity to withhold information; if you make the idea to always avoid possibly inflicting pain on yourself a reality, you could avoid even trying to scratch an itch that might bring immense relief.