FYI, there's an interesting commentator machine operating in China for public manipulation https://en.wikipedia.org/wiki/50_Cent_Party

I'm not ruling out genuine believer of their opinions but there's also this possibility.

They're getting pretty sophisticated and sometimes instead of supporting the government, their goal would be disinformation, induce hatred (i.e. troll) to divide and conquer.

If you're interested in the perspective of some HongKongness (myself included) I'd recommend this film https://en.wikipedia.org/wiki/Ten_Years_(2015_film)

It's so touching to me because it's dystopian but really just exaggeration what I perceive in real life that how the changes are creeping in during recent years, continual development of public swaying psyops is just one of them.

Not that I like Britain nor UN either as they both dropped the ball of enforcing the Sino-British Joint Declaration or giving HongKong a chance to decide its own fate as other post-colony.