1) It's now been updated, with Tarty's story about how she came to write it...
2) From "Light Bulb Jokes" on that site:
Q. How many mail list subscribers does it take to change a light bulb?
A. 1,331 - 1 to change the light bulb and to post to the mail list that the light bulb has been changed;
14 to share similar experiences of changing light bulbs and how the light bulb could have been changed differently;
7 to caution about the dangers of changing light bulbs;
27 to point out spelling/grammar errors in posts about changing light bulbs;
53 to flame the spell checkers;
41 to correct spelling in the spelling/grammar flames;
156 to write to the list administrator complaining about the light bulb, discussion and its inappropriateness to this mail list;
109 to post that this list is not about light bulbs and to please take this email exchange to another list ;
203 to demand that cross posting to other lists about changing light bulbs be stopped;
111 to defend the posting to this list saying that we all use light bulbs and therefore the posts *are* relevant to this mail list ;
3 to post about links they found from the URLs that are relevant to this list which makes light bulbs relevant to this list;
306 to debate which method of changing light bulbs is superior, where to buy the best light bulbs, what brand of light bulbs work best for this technique, and what brands are faulty;
27 to post URLs where one can see examples of different light bulbs;
14 to post that the URLs were posted incorrectly, and to post corrected URLs ;
33 to concatenate all posts to date, then quote them including all headers and footers, and then add "Me Too."
12 to post to the list that they are unsubscribing because they cannot handle the light bulb controversey;
19 to quote the "Me Too's" to say, "Me Three."
4 to suggest that posters request the light bulb FAQ
48 to propose new change.lite.bulb newsgroup
47 to say there is already an alt.light.bulb newsgroup
143 to ask if anyone ever did change the lightbulb