SCMP Debate: What do the appearances of colonial-era flags at recent protests indicate?

The appearance of colonial-era flags at recent demonstrations in the city has infuriated mainland commentators and former top officials. Even President Hu Jintao, in his speech to the party congress last week, was prompted to call on Hongkongers to "share the dignity and pride of being Chinese". We asked experts, political figures and concerned Hongkongers whether this use of colonial-era symbols was a genuine sign of a pro-independence sentiment or merely reflected growing frustration with the local and national governments.
Q1 Is the presence of the British-era flag during demonstrations in Hong Kong an indication of the emergence of a pro-independence force in the city? Does it underline a growing anti-mainland sentiment among some Hongkongers?
Q2 What actions should the central and Hong Kong governments take to address the apparently growing anti-mainland sentiment?
Q3 Are you worried that the exchanges between Hong Kong people and mainlanders, as well as economic ties, will be affected by a growing anti-mainland sentiment?
Dickson Cheung
Founder of the 'We're Hongkongian, not Chinese' Facebook page