Lampshaded when Kirito remarks that online players act very different from how they would in real life.
What makes this a lot worse is that all of the players are stuck in the game until they beat it or die, which would kill them in real life. Or the other other kind, for that matter. Not to be confused with the other kind of Darker You. Compare Became Their Own Antithesis and Maddened Into Misanthropy. Closely related to What You Are in the Dark. A Darker MeSee also: G.I.R.L., G.I.F.T., Beneath the Mask, Troll, Griefer, and Mean Character, Nice Actor. in that it allows people to say things they would never say in real life, but is not limited to profane or offensive statements. Most online personas include at least a little bit of A Darker Me, and some, most notably the Troll, include a lot of it.
A Darker Me is generally the person you would be if you weren't the more cautious, inhibited and boring person you actually are. A Darker MeYou, only cooler, edgier, and often ruder.