The reason why Spiral Knights is dying is simply because the veterans keep scaring off new players with worries that the game will die. This causes new players to avoid the game, and not spend potential money towards keeping the game alive. Veterans quit later. No more new players are coming in. OOO goes bankrupt.
Predictable result.
Stop scaring off the new players if you don't want your precious game to die.
What did you actualy mean when you said "Stop scaring off the new players"? And how?