Wait! Hold up!
I liked Level 404, despite minor 'flaws'.
I thought the purpose of the hidden tabs and collapsible was for the reader to seek the truth. The read was supposed to look for what happened to the level... so... I just started clicking to see what was there and what I would find. I treated Level 404 like a point-and-click experience.
However, you are free to take my fondness of your now removed level with a grain of salt. Thank you for the reading and interactive experience.