I don't think writers are vampires, this denotes that we are dormant for half the day and sleep in coffins. I think we are more like parasites, maybe two foot long tape worms, we feed all the time and grow stronger....urrrgh. Yet, there are writers who are out there who do know how to keep others down, I call this the whack a mole theory (the game as you know is that anytime a mole pops up on the machine, you whack it). So, some writers who are threatened, whack down other writers by undermining them - I met a quite famous UK writer once who was kind enough to look at my work, they took a red pen to it and after cutting voraciously, declared, "Now, that's how I'd do this book", to which I replied, "But I'm not you". WHACK A MOLE TIME. It's a historical allegory too.