@ some of the more 'Frothing at the mouth' rabid sort of manics above (ie emberdione for one)

READ THE DAMN POST
You complain about losing your achievement once you have bought all artifacts (which seems strange to me tbh - do a couple of things and the items seemed to drop like rain for me - so much so I have done all the artifacts on 3 toons and partially on another 2, although i DID by the weapon one for the massive cost of 400g a toon). But the post SPECIFICALLY STATES - and I quote "Completed achievements are unaffected."

So i will lose two part achivements - whoop de do, such a massive deal eh? /sarcasm off

As to calling for 'someone to be fired', this shows that you dont know how programming works, and is rather extreme for a small fault (and this is small - it only affects 3 achivements).

The individual lines of code have probably been tested perfectly well, but there is some secondary or tertiary interaction that causes the error.

It is not as simple as checking your bicyle tires for a leak by putting it underwater. Its more akin to searching a haystack, for a particular stand of hay.