[RDDavies]

Facebook to front page in 2004: "16 points for being able to see who my friends are?"

Twitter to front page in 2005: "16 points for being able to write short messages?"

eBay to front page in 1998: "16 points for being able to sell things?"

It isn't about how involved or difficult a task is. Twitter wasn't "hard" to build (early on). It's about the utility of something, and this provides a great deal of utility. I don't mean my post to come off as a flame, as that's not at all what it's intended, but I, for one, find this very useful.