User blog comment:EvanDude345rv5/Fairy Tail Chapter 358 Review : Magical Barrier Particles/@comment-121.54.22.98-20131103083600/@comment-5580383-20131104154045

Yeah difference is that they were able to recognize Yajima, Ultear went from in her 30's to her 80's. I highly doubt the demons would recognize her.

I suspect they're killing council members off because they fear forbidden level of magic, also Lost Ages costs the users their magic and eventually their life force.