In terms of epistemic and instrumental rationality, couldn't it be refining other people's rationality with respect to you, not just your own rationality? If I post information here, it will help others make decisions in regards to me. One vision and goal that I have is to finally take down my ugly, antiquated Angelist resume down and to advertise my Lesswrong content as who I am (might even chuck my CV into my Wiki page, if I ever figure out how to do it!). I feel it's a more honest and representation of me than the strategic self presentation elsewhere.