Cascade Jokes

Q: How many rec.humor readers does it take to change a lightbulb?
A: An infinitely growing number: One to announce that the bulb burned out. Ten to agree. One to change it, one to post in saying "I got it", one to post in saying "Yes, but they have shots for it nowadays", one to post in saying "Our news software hasn't been working and I missed the original lightbulb joke. Would someone please post it again or email it to me ?", one to post in quoting everything so far and the words "Me too", two to turn it into a cascade, another ten to build the cascade into a disk-wasting monster, one to post in with "I don't get it. Isn't this the place for FUNNY jokes ?", one to post in after two months "What's this lightbulb joke you're all talking about ?", one to repost it a month later thinking it's a new joke, one to post "I didn't get it. What's the punchline ?", one to post "Has anyone got a list of these? I'm more...