Just before Twitter announced it’s accepting Elon Musk’s $44 buyout bid, the world’s richest man tweeted , “I hope that even my worst critics remain on Twitter, because that is what free speech means.” His commitment is getting a mild test thanks to a fellow tech billionaire / rocket enthusiast / media mogul. Jeff Bezos quoted a New York Times reporter’s tweet pointing out that Tesla’s business interests in China could give the government leverage over Twitter via its new owner, saying , “Interesting question. Did the Chinese government just gain a bit of leverage over the town square?.” Bezos…