I've been suspecting this for a long time, even though I rarely participate in events.
Although I was the one who proposed the event system (under the name Magnifique about 2 years ago), the way it has been implemented does the opposite of what I intended when suggesting, mainly because if they are a money source (I intended them as a money sink, bragging rights being the main reward for participating) and thereby kill trading and mining.
The events should not be money sources, and should not even be at peak times.
The events were made in a way that they garner maximum participation by putting them at peak times and making them money sources.
They should be made so they promote server activity at all times, by requiring training and credits while they aren't happening.
I know this is going to be declared as me "being negative" and me being "totally mean", but the game can't be made better if things aren't said because people are afraid to offend someone.