you may still only have the normal number of copies of any given card in your deck
(Highlited by me)
Yeah, yeah, reading skills again. 
Truly?
(Highlited by me)
You’re exceptional if you somehow managed to craft the uncraftable.
Only you or the server should know what happened to it. You could have never had it in the first place, discenchanted it or whatever.
That’s an interesting viewpoint. 
Someone loans you something, in this case — cards, for free. You yell at them: ‘You ROBBED me of the opportunity to keep, sell or disenchant it! I’m FRUSTRATED! Ridiculous!’