Over time I have noted many mentions of Negativity on WP and decided to launch a independant investigation into the causes. A thorough study quickly revealed two main causes, and an very unexpected connection to the alternating colors of the post.
1. OTHERWORLDLY INFLUENCE
A. Demons inhabit blue posts.
If your post will end up with a blue backround, beware. When you are writing your post you must concentrate on what you are doing totally and not let your mind wander or get up for a soda, and never ever stare blanky at the screen. Plan your post ahead of time and get in and out as fast as possible. If you don't you open youself up for being possessed by the demons who will twist and warp what you write for their own depressing purposes. Remember, demons want you to be negative.
B. Fairies, Sprites and Winkles inhabit green posts.
Backround checks revealed that the green posts fall under the jurisdiction of Mother Nature, or just 'Nature'. No real special precautions need to be taken when your post will end up with a green backround. This is because Nature's minions which inhabit them are very good and benevolent creatures and at most will improve your post with some magic optimism dust.
2. SNARKS
As part of my investigation I contacted Internet Police Headquarters and spoke with Inspector Harris who specializes in Internet Gang activity. After sending him some suspected posts, he identified elements consistant with the Keyboard Snarks, one of the oldest and most pervasive gangs on the web.
Keyboard Snarks typically operate by ridiculing any idea or thought posted by anyone else, and over time will suppress all but routine posts that do not require thought. It is not known how they profit by this so it is widely believed to be a simple intimidation tactic used to establish their turf.
How to minimalize the effects of Snarks
I spoke with Inspector Harris at length on preventive measures, but he said the samples we sent indicate level 2 infestation, and suggested we apply to get into NATO and then request Obama deploy his missile screen. When I asked if there was a way to get the missile screen without joining NATO, he said he would have his cousin contact me. But until the screen is up and running the best anti-snark method is to imagine the Snark does not exsist on the same plane and that their posts are invisible.