I'm not against CARING HOW YOU LOOK. I'm against the view that caring how you look means you need to wear a suit or polo shirt and slacks or whatever the generic high-class look is.
There's other ways to care, but as a rule successful people are more likely to be worth knowing than others, are more able to be picky with their class distinctions, and are thus most likely to be worth emulating. It's not a universal strategy, but it's a common enough one that it's worth keeping it available.
This is a repository for major, life-altering mistakes that you or others have made. Detailed accounts of specific mistakes are welcome, and so are mentions of general classes of mistakes that people often make. If similar repositories already exist (inside or outside of LW), links are greatly appreciated.
The purpose of this repository is to collect information about serious misjudgements and mistakes in order to help people avoid similar mistakes. (I am posting this repository because I'm trying to conduct a premortem on my life and figure out what catastrophic risks may screw me over in the near or far future.)