We currently live in a world where people don't feel comfortable expressing dissenting opinions about Hong Kong and China from their primary accounts. Any dissenting opinion is immediately suppressed and the user in question surrounded by a hostile interrogation squad.

When they make anonymous green accounts for the specific purpose of airing these opinions, they get accused of astroturfing because they "only discuss" the specific subject. Just think about the irony of that for a second as it relates to what HK supporters purport to be fighting for.