I use LW as a social networking device more than anything else.

• I got three jobs through the LW community, through a mix of job postings here and social networks, the succession of which has pretty much raised me from poor/lower class to middle class.
• The vast majority of my romantic partners since getting involved with rationality are through the LW community, often met at meetups or through related social networks.
• Almost all of my friends are through the rationalist community, especially if you expand that to include some of the related atheist networks.
• I've hosted two LWers when they were visiting the city I was in, and an internet acquaintance who only knew me through the atheist/rationalist community recently hosted me when I was visiting NYC.
• I'm currently looking for a rationalist apartment-mate (let me know if you're in NYC and interested! (and clean))