I'm trying to delete my own submission as it turns out someone created similar page that got approved while I was creating it. Now I'm trying to delete it, and get 404 message instead.
Here is my submission: https://www.giantbomb.com/wiki/moderation/51302/ (Blush Blush)
OS: Windows 7 x64
Browser: Waterfox 56.2.9 x64 (should be Firefox compatible).
Extensions: ViolentMonkey (does not affect giantbomb website).