"Eliezer2000 lives by the rule that you should always be ready to have your thoughts broadcast to the whole world at any time, without embarrassment."

I can understand most of the paths you followed during your youth, but I don't really get this. Even if it's a good idea for Eliezer_2000 to broadcast everything, wouldn't it be stupid for Eliezer_1200, who just discovered scientific materialism, to broadcast everything?

"If everyone were to live for others all the time, life would be like a procession of ants following each other around in a circle."

For a more mathematical version of this, see http://www.acceleratingfuture.com/tom/?p=99.

"It does not seem a very intuitive belief (except for very religious types and Eliezer1997 was not one of those), so what was its justification?"

WARNING: Eliezer-1999 content.

http://yudkowsky.net/tmol-faq/tmol-faq.html

"Even so, if you don't try, or don't try hard enough, you don't get a chance to sit down at the high-stakes table - never mind the ability ante."

Are you referring to external exclusion of people who don't try, or self-exclusion?