It's a few things. - Despite loss of players, the game still has a sizeable population. When you get that many people.. you get alot of squeaky wheels, and we know what squeaky wheels do. - Bitter about the launch state. This is pretty legit, the game we got wasn't the one that was advertised to us. This resulted in above squeaky wheels actually getting traction and that resulted in alot of mob mentality. - Brink of new content, hardcore players EXPECT everyone to know things as they know or have as much skill as they have. When this doesn't always happen, its a gap in what they expected and they will usually act out in response to the shift in their expectations. When someone has beat a raid in 1 hour flat as an average time for a month straight, an hour and 30 minutes seems like a big failure. Since they have done it many times, then the variable is the people that they are playing with and not themselves. There are more, but I'm sure you get the gist. This will ease up a bit when new content comes out due to the unknown nature of it. When things are on "farm" tension in a community usually rises due to the nature of gamers wanting to make things as efficient as possible.