It is the 14th letter in the English alphabet and, in Scrabble, the springboard for more than 600 8-letter Words. But for the Communist party of China it is also a subversive and intolerable character that was this week banished from the internet as Chinese censors battled to silence criticism of Xi Jinping’s bid to set himself up as ruler for life. The contravening consonant was perhaps the most unusual victim of a crackdown targeting words, phrases and even solitary letters censors feared might be used to attack Beijing’s controversial decision to abolish constitutional term limits for China’s president.