I think the LessWrong user pages are underutilized. There isn't even a wiki pages describing them (or at least I can't find it, otherwise I would have linked it here).

The user pages are what is shown when you click on a user like you would do to see that users other contributions, his karma and to send a personal message. These user pages are maintained and editable in the wiki but embedded in the blog view. This link makes these pages highly visible in everyday LW browsing and could create an awareness of LWers preferences.

Example: me in LW vs. me in LWWiki

Currently only 3 of the top ten poster have one (including EY). And this despite it being so easy to create them via the LWWiki (switch to the Wiki via the link in the nav bar and then click on your name). I guess it's partly because the sync-feature is relatively new.

JoshuaFox recently proposed to indicate your interest in business networking on the user page. But that is only one bit of information you could put there. Another information I'd like to see are the tags proposed on the LW Community Weekend Berlin which could indicate

• your openness to personal messages
• your willingness to answer questions (to specific topics); one special sub-case might be willingness to proofread posts of non-native speakers (the welcome page mentions four persons explicitly three of whom have not posted recently). 
• whether you operate under Crockers rules (a tag seen very often on the Berlin badges)
• other information of this kind like offers of help, dating, ...