These are pretty much people concluding too much or being too overexcited about the increase. It is all about the increases because it is beneficial for them obviously, therefore due to continuous rush in increase they believe it is gonna go to the moon then finally give up in the end once their expectation didn't get the satisfaction. Ignore these traders or somehow you could lecture them to avoid getting too much of their emotion. Emotions aren't all about the regret or depressions, it could also pertain from positivity of one's view in a situation. Somehow it is getting to exaggerated and it is no longer controllable emotion.