It's called a critique.
No, I'm not personally flaming the hell out of you for the hell of it. I just think that some things needed to be said. And no, I don't care how many people told you that your artwork was wonderful and great. I see flaws, and I want to help you make things better. I critique because I care. So I don't care that you blocked me from commenting on your profile, it's the fact that you see my critique as a personal attack. Toughen up, try what people suggest. It could help your art.
This has been a message from fellow artist.