By Luc Olinga The future owner of Twitter has just been confronted with one of the challenges that await him. Elon Musk says he is a “free speech absolutist.” It was in the name of free speech that the richest man in the world attacked the microblogging website Twitter for months, until he finally made a $44 billion offer to buy it on April 14. “Free speech is essential to a functioning democracy,” the billionaire posted on the social network on March 25. “Do you believe Twitter rigorously adheres to this principle?” he added with a poll, asking Twitter users to vote. The following day he was …