I think their problem is to keep the Data low for servers!
To add the counter on already existing things like achivements is possible but only works once.
I think they are searching for a method that can be used more frequently than just "once"...
A very interesting way is the Antique gear we can get from new dungeons and i think thats a big step into the right direction. However, it is not perfect and still uses a bit much server space...
