Well, from my experience, I know people who are just bitter about their process. There is a point where there is no turning back, so the only choice is to sustain. And I won't go into any detail about that, but yall (Greeks) know what I mean. I know a person who is so bitter about the divisiveness w/i the organization, coupled with her process, that she has no desire to be active within her org.
What I DON'T understand is how, exactly, one turns in their membership. The way I understand it, once an AKA, ALWAYS an AKA.
While I may be able to understand some people's reasons for being inactive for a time, I just don't agree with simply REMAINING inactive FOREVER (or removing your name or whatever). I just don't agree with that. In my opinion, you made a pledge (oath, etc.), KEEP IT!!! I still harbor some bitterness about some stuff from time to time, but you get over it, and you MOVE ON!