This is the biggest load of bullsh1t I have ever read. Could you possibly over-react more if you tried.
If everyone agreed with each other then this would be a very boring world to live in. When someone posts an image, then people either comment on the aesthetics of the image and/or its technical merits. Comments like "I like it" are neither of the above, it is simply a subjective reaction. Very few (qualified or not) actually go to the trouble of analysing images and pointing out their merits and flaws. When they do they are shot down. Who cares about the delivery of the criticism, what has got to do with anything - don't like it move on, but please everyone stop being so bloody sensitive