This is a very simple issue and needs no debate! By the way, this game is about Legendary Rank Jumble names, and if this is true...Which of the two names will bring out a legendary ranked member if a search is done? Dark_Star or DarkStar_ ? The second issue, if the edit came while @Doan9269 had posted his answer its another issue that could invalidate his entry as you need to create a new post and not edit old post as per rules, just my 2cents.
Once you posted, you can edit it
within 10 minutes and there won't be any text shown that it is edited. Number 3 correct answer is not DarkStar_ and you clearly miss my point. It's not about the correct answer of DarkStar_ but as to who posted first and answer it correctly. I can take a screenshot of this post of mine and when I edited this. I will pm you with the edited and when I first posted it.
not 10 but within 5 minutes...unless this was changed
***Edit***
Still remains to be 10 minutes, thanks for the correction @nakamura12