They did a year ago. So I do not see how you can complain about anything.
Ummm definitely not. If I used a purified fusion stone on my grafu's shoulders, I would lose the piece of gear and I'd get the stats that were on the gear attached to a stupid stone.
If I used an equipment attribute purifying stone, I would get to select ONE stat of MY CHOICE that I get to remove. It would NOT come off as a stone; it would simply disappear.
If I used an attribute extractor, I would have ONE RANDOM stat removed attached to a stone. That stone would be a tier 4 stone even if it was hero / glorious (I haven't tried it with bygones and eternities yet).
I don't see how I can use a purified fusion stone the same way as any of the other aforementioned items. Perhaps you can enlighten me?