I've figured out how we can eliminate the most useless part of the human population. It's a reverse-Golgafrincham "D" Ark scam:
Step 1: Wait for some sort of apocalyptic crisis that requires a rapid emergency evacuation of the entire planet;
Step 2: Issue the evacuation order and instructions via the Internet. But! Insert an absolutely trivial error into the text. Something that in no way obscures or effects the message itself;
Step 3: Evacuate the useful majority of the planet while the rest waste time at their keyboards, angrily pointing out the mistake and demanding a full acknowledgement of this shameful and inexcusable carelessness.
Step 4: Enjoy a complimentary beverage in the starliner while you revel at the thought that everyone who ever griefed you online will be dead soon. Your home planet has been annihilated by asteroids, but hey, there's an upside: no surviving members of the human race are the kind of people who would make an issue out of the fact that you referred to a tomato as a vegetable, even if they knew that it's technically classified as a fruit.
The idea came to me over on Twitter, after I retweeted a local hurricane warning from a respected local meteorologist. Respondent #1 questioned the meteorologist's use of National Hurricane Center data and Respondent #2 incorrectly criticized him for using "overnight" as a verb.
It's a brilliant scheme and I confess that I felt like Dr. Who when I came up with it.
Incidentally, this post contains several intentional errors:
1) "Useless" is an absolute quality; nothing can be "most useless."
2) In "The Hitchhiker's Guide To The Galaxy," it's the "B" Ark that contains the useless part of the Golgafrincham society, not the "D" Ark.
3) Though "effect" can be used as a noun or a verb, in Step 2 the correct word is "affect."
4) It's always "Doctor Who" or "The Doctor." Never "Dr."
If you never got to this bit because you got distracted by an unquenchable need to post a response pointing out any of these errors...enjoy the apocalypse. :)