<p>Now that I think about it, I’m not sure why I post superfluous amounts of messages on your wall. Although I also do a lot of Facebook PMing, I think this is an interesting psychological question to ask. My guess is that wall posting is seemingly less of a hassle and perceivably “easier” to do than specifying directly a person in emails/private messages. Nevertheless, wall posting seems to have taken up a lot of my daily mind share lately - so email just seems to be one of those seemingly less efficient, slower ways of doing things.</p>