Do you like critics on your works?
When I was at graphical design school, our teacher used to work with us in a way where everyone has to put their recent work on the wall of the class room and then everybody should say everything they had in their mind about all of the other works. Everyting without censorship. When we started that, it feel little bad to hear all of the nasty things about the works for what you had done so much, but later you realized that it was actually helping. Of course all feedback were not negative, but most of it was and all they were saying were very well reasoned critics.
So from that I’ve learned that when you say negative things about someones work, you are helping him to grow as an artist, but also at the same time I know that everybody cannot get it in the way that is constructive for his personal growth. In that cases the “target” will get angry and starts fight back.
I have this kind of experiences in Blender community and I’m sorry if I’ve hurt someones feelings. I am trying to help even though all the things I’ve said does not feel good at the beginning.
When you wanna be constructive, you must tell the truth. You cannot hide your true mindings, because then you are cheating that person to the wrong path. Tell the truth and force yourself also to find something positive from the work, so you have balance with the good and negative things in your message. Do not say anything personal. The art and artists are two different things and your critic goes to the art, not to the artist.