The next room isn't much better.
Look, I play video games to distract myself from my crushing loneliness, not be reminded of it. Gamers might collect those coins both out of sheer habit and to hide the grim message, only to be told in the next room, "Coins will never fill the void." The message after that is, "You can't succeed as yourself, Waluigi. You never could," with the implication that players should be substituting their own name for the purple-clad tennis enthusiast's.
Players will endlessly loop through the same few rooms, eventually running out of time and dying alone, unless they find an alternate path that tells them, "Sacrifice your sense of self." Keep going down that road and you'll be turned back into Mario, told to "embrace the enemy," and achieve victory ... at a cost.