Unfortunately it has gotten to the point where the only things you consider "constructive" are the posts telling you how good you are.
When someone posts something negative, obviously something happened to make them feel that way. They don't just wake up in the morning and decide "hey I think I am going to post some negative feedback today". So instead of finding an excuse for everything that isn't "you're awesome!", try and figure out why they may feel that way, and say you'll work on it.
