Not sure what the best place for this is 
Several times on the UE4 answer hubs I have clicked the “Post a Question”, spend time writing up a question, and then (by mistake) clicked the “Post A Question” button again thinking it would “Post Question” → the button is big, blue and people who dont pay attention (like me), read it quickly as “Post Question”. You lose everything you put in the form at this point.
It’s minor, but maybe disable the “Post a Question” button when you are already posting a question, or put in a confirmation?