I'm sure this side-effect/bug is known, but essentially since "Completed Artifacts" were always kept in record (just not displayed), it's impossible to complete certain Achievements such as ...
Wowhead/WoW Freakz Link: N/A
Bug Description:
To be fair, this is a bug I've seen on other servers in the past. Though I've never seen it fixed. The bigger problem now is that my normal work-around ...
Topic: 
World of Warcraft
