Yes, it is quite a joy that some people need their egos stroked at every change they can get. This can be for a number of reasons, whether they have a sense that they are more important than other people simply because they are themselves, or the opposite, that they are shit in some aspect of their lives, and thus want constant praise in another to compensate. It's quite sad, and I see it too often, especially when someone is constantly praised for various reasons.
And sadly, many of these people are often the kind that don't sugar coat things, thinking they're so far up that they can say what they want to anyone. And while some people are simply naturally outspoken, the formerly mentioned will quickly have a change of tune the moment that anyone speaks out against them.
So if you're going to be honest about your thoughts and opinions, do so while being willing to hear what others have to say about you, or else you're an egotistical ass too.
And actually take it to thought damnit! Don't just write it off instantly as something easy like 'jealousy' or 'bitterness'. Too many people do that and it's really annoying.