Being kind to a person that behaves as described in the grandparent comment could communicate that you find this kind of behavior helpful. Fine if that's really the case; problematic for everyone if not.
This entire discussion needs to come to a screeching halt while people get together and hammer out some definitions. It's clear we're all working from different and contradictory assumptions about what these words mean.
I think most people would agree Fred Rogers was kind - but I have to imagine he had to fire people from the show over the course of its run.