Personally, I would never associate the server crashing with turning in a quest. The server crashes so much and has several times after I have turned in a quest, and also while hearthing, killing a murloc and so many other actions that any of them may have caused the server to crash.
I guess the lesson to be learned is not to do the same thing you were doing prior to a server crash. So if you sat down for a food buff prior to crash .. DO NOT TRY TO BUFF UP AFTER SERVER IS BACK UP!
You will thank me later for this advice
