Are we more akratic than average?

Akrasia is a topic that shows up on LW very frequently. Is there evidence that this is related to any of the traits that correlate with LW participation (high intelligence, non-neurotypical to some greater or lesser degree, inclination toward far thinking, anything else we know from the (old) survey or any other polls I’m forgetting)? Or is it just a problem in instrumental rationality that most or all people deal with from time to time, for which there is limited scientific understanding and therefore very little science underlying the mainstream advice, thus making it (seemingly) low-hanging fruit for rationalists?