In a surprise announcement, Elon Musk turned down a seat on Twitter’s board of directors, according to a recent post by the company CEO, while speculations abound on the rejection as Musk was increasingly vocal about bringing about changes on the platform. After buying up enough stock that made him the biggest shareholder in the company, which warrants an invite for a seat, Twitter CEO Parag Agarwal said in a Sunday night post on Twitter, “Elon’s appointment to the board was to become officially effective 4/9, but Elon shared that same morning that he will no longer join the board. I believe this is for the best.” Musk posted a hand-over-mouth smiley following Agarwal’s post. The Tesla CEO’s appointment to Twitter’s board would have effectively capped his ability to own more than 14.9 percent of the company stock. When his filing was made public, the world’s richest man owned about …