Obligatory xkcd: <a href="http://xkcd.com/1137/" rel="nofollow">http://xkcd.com/1137/</a><p>More details: Reading the source code from the web page, the username is \u202enahtanoJ where "\u202e" means<p>> RLO | U+202E | RIGHT-TO-LEFT OVERRIDE | Force following characters to be treated as strong right-to-left characters.<p>See: <a href="http://unicode.org/reports/tr9/#Explicit_Directional_Overrides" rel="nofollow">http://unicode.org/reports/tr9/#Explicit_Directional_Overrid...</a>