Feedback vs Discouragement

You should always give feedback, but never give discouragement. Feedback is truly helpful, only trying to help the recipient. Discouragement is never helpful, to either the giver or recipient. The difference? 

Intent.

If I tell you what you're working on sucks, that's discouragement. If I tell you what you're working on sucks but could be much better if you'd change this, that's feedback. Discouragement is final, feedback is always trying to get better. When I give you feedback, I'm on you're side, and I want you to get better. When I give you discouragement, I'm not on you're side, and I want you to stop creating.