Comment by Udik

I don't think the point of the post is to encourage people to be kind. It is more to encourage people to be subtle.

I think that in many situations language is a tool to make other people do what we want them to do. And turns out that closing others in a corner with data and hard logic- while an excellent method in science- is not the most effective approach in a lot of other contexts.

This doesn't necessarily mean compromising with our values either: one can be faithful to truth and still formulate his thoughts in a slightly more open, kind and accommodating way.