He has another post about how if you say something outrageous that later becomes common wisdom, you won't be widely admired for having said it first; you will still be thought of as a crank.
Cognitive bias is now much more popular and fashionable than it was when I first started talking to my friends about it after reading Eliezer's posts. I predict that zero people will say "so it looks like this Eliezer guy you keep talking about was ahead of the curve on cognitive bias, maybe it's worth hearing some of his other ideas?"
Thus spake Eliezer:
It seems that many here might have outlandish ideas for ways of improving our lives. For instance, a recent post advocated installing really bright lights as a way to boost alertness and productivity. We should not adopt such hacks into our dogma until we're pretty sure they work; however, one way of knowing whether a crazy idea works is to try implementing it, and you may have more ideas than you're planning to implement.
So: please post all such lifehack ideas! Even if you haven't tried them, even if they seem unlikely to work. Post them separately, unless some other way would be more appropriate. If you've tried some idea and it hasn't worked, it would be useful to post that too.