kinda... it's more covered by other people.
things like:
if you are talking about identity then it's more about keeping your identity small.
http://lesswrong.com/lw/jsh/strategic_choice_of_identity/
These particular identities were generated based on experiences.
they went: Motivation -> prolonged (or repeated) action -> redefine identity based on action that is being done -> act to take advantage of the identity and not the original motivation -> have no reason to actually do the thing other than a sense of "identity" -> fail.
(although it's possible to have not failed. a sense of identity can be very motivating to some people and in some circumstances.) Maybe SquirrelInHell can explain more)
Your answers seem definitive, but I see no reason to accept them as any more than a guess about how certain aspects of human motivation should be modeled.
I've been working on some motivation/productivity systems for myself for a couple years and, after some very significant initial success, have encountered some hiccups. I'm interested in figuring out new useful ways to proceed.
I'm skeptical of some of the "sounds good and/or science-y enough but doesn't actually work" stuff on LW. I was interested in knowing why you think Bob and Sally are wrong...
I have moved this post to my blog: http://squirrelinhell.blogspot.com/2016/03/abuse-of-productivity-systems.html