Haha, I logged into Slashdot for the first time in 4 years to check my Slashdot ID. I remember it seemed so high when I signed up. Now 100K users is par for the course for social websites.
The Slashdot comment is actually quite reasonable, assuaging concerns about privacy:
"And a note about privacy. None of your musical listening data will be available to anyone other than you. We hope to use massive amounts of data to aid in analysis, but your individual data will never be seen by anyone else."
OTOH if just one year after he said:
ZUCK: they "trust me"
ZUCK: dumb fucks
well... it means you can't "trust" people on the Internet with information you wouldn't want divulged.
http://www.thecrimson.com/article/2003/11/19/facemash-creato...
And some comments from Slashdot when Zuckerberg was in high school: http://slashdot.org/comments.pl?sid=61425&threshold=1...