By Gerry Shih and Yimou Lee SAN FRANCISCO/HONG KONG (Reuters) – Weibo Corp executives on Thursday toasted the Chinese social media firms debut at Nasdaqs New York headquarters. Hours earlier in Beijing, Charles Xue, a Chinese-American venture capitalist and prominent Weibo user, celebrated a different kind of coming-out: his release after eight months in jail. The timing of the two events, though coincidental, highlights the fundamental challenge for Shanghai-based Weibo: progressing from being a microblogging phenomenon in China to becoming an entrenched member of the international social media industry. Now, as Weibo celebrates its warm reception on international financial markets, its conflicts with censors at home raise the question of whether the firm known as the Twitter of China may eventually be derailed by government interference.