I think the key here is to be emotionally D before dating, which could happen before or after legal D. That is, one shouldn't date to try to become emotionally D, but wait until after that point. Using someone to try to become emotionally D is a truly horrible way to treat another person. And, it invariably backfires on the person doing it.
Wii does not sound emotionally D, not anywhere close. Indeed, probably farther from it than a year ago by all indications. (Which, perhaps, is a good thing. Any kind of movement is often better than remaining stuck, but enough about that.)
CTH is sounding closer to being emotionally D (though not there yet perhaps.) His reaction to XW's plans to put up a profile seems more of a spectator/curious/detached reaction than stalker/bitter/how-could-she-do-this-to-me reaction.
I was emotionally D, DONE with shouting uppercase letters before my D was final. Others aren't DONE until long after. Some are never DONE.
Don't date if not DONE.
This I can tell you. When you are DONE, you know it with great clarity.
