A few things, Americans get a shorter leash than Chinese members. I can confirm that. With that comes a down side too, some Chinese members stay far pass their welcome, while bad American members are wiped way sooner. It looks one sided simply because of that.
proof? I took the first thing that came from Yahoo China google search. Read the comment section. More or less the same across the comment sections, so unless Americans become purified by PDF, then another explanation must be true.
China naval chief says minor incident could spark war in South China Sea - Yahoo News
Second, there are trolling Chinese posters sure, but others have a differing opinion. Due to the fact, majority of us on this forum take in news from a Western source, if for no other reason than Chinese is not widely spoken here. It may seem the Chinese poster is "trolling," when in fact it's a perfectly valid stand point.
I don't know what some of the poster's rank in the military is, but educated and experienced Chinese admirals and generals have gone in the opposite of many claims of theirs, and if one is to say that is propaganda, then I must say the US army is no stranger to that either, and a lot of the American poster's view points, come directly from them. (From articles, probably not the CIA memo)
There is a general bias that Chinese claims are inherently lies, but Americans are more truthful.
For an example, consider the one child policy end, everybody and their mamas are calling the policy a failure and the cost it created, but nobody wants to talk the benefits. China faced an impossible choice by the end of the 70s. It's like Chemo, it's not going to be pretty either way but one can save your life. Nobody likes to talk about that.
Is it right or wrong? I don't know, but I know it's not one sided.
With more Chinese members and a Western view point, it can certainly seem heated. Ban the trolls and be open minded and let's move on.