I'd be in.

You can dismiss the shitstorm associated with the phrase PUA by just calling it social skills or charisma.

Some thoughts and anticipated difficulties:

1. Should this be a forum, a blog, or a LW-style "community blog"? I think the LW structure might actually be optimal: there are top-level articles (which would contain advice) and long threaded discussions (which would contain personal experiences.)

2. What do you do about different levels? Some people need what I'd think of as "basic" advice (wear a clean suit to a job interview) and some people want something "advanced" (how can I make people think my ideas are awesome?)

3. A major challenge, I think, is when you can't tell how you appear to others, or when you get too caught up in the moment to remember to make a good impression. Most social-skills advice is along the lines of "remember to do X, Y, and Z" -- but how do you remember to remember? Someone who has cognitive insights could be very helpful here.

4. Scott Adams' list is very corporate-focused. We might need to poll people to see how many of us actually need golf, tennis, and management techniques.

5. Scott Aaronson once began a series of posts called "Geek Self-Help," though unfortunately he never followed up. The idea is that intelligent people have a strong tendency to discount motivational platitudes and self-help books, because those sound (and often are) stupid. But there is such a thing as healthy thinking -- the opposite of self-destructive thinking. It's just that you have to communicate it in a way that sounds insightful instead of lame. If anyone has insights of this kind, this would be a good place to share them.