I thought so too. I know she wasn't a regular poster in LIW, but I do remember seeing her post in other forums more frequently, though not recently that I recall.
I don't know anything about rubyprincess or Thomperchik. I did resurrect nebe's setting thread from October in hopes that she's subscribed to it and will come and update us if she wishes. She had the diamond in October and was just working on the setting. Since it's been 7 months, I certainly hope that it's finished and she's either already engaged or is waiting with a completed ring!
I know. But we've done all we can. nebe is going on 8 months with no contact. That's past the normal limit of 6 months anyway. Hopefully they'll pop in over the next couple of days...