I know your good behavior but for sensitive members ... we joke regurlalry on LCS topic ( the boat is not fortress ... ) proof i don't critic only Chinese weapons ... and they get wrong it is obvious and US members which prefer USA ( i precise important ) never cause a problem they undestand in fact are able to understand all the difference with others so it is possible joke fortunately !
i have severals links eventualy.
That's your problem right there. Jokes have to be understood and appreciated with the proper context and backgrounds. People with different backgrounds take jokes differently. A joke can be amusing to Americans, but offensive to Chinese. Just like your friend airforce brat likes to joke president Xi is an emperor, you might appreciated it as a joke, some Chinese SDF members can very well consider that to an offensive insult. See the difference.
One has to be careful with jokes especially in a public settings like SDF. Despite being an American forum,. there is large numbers of Chinese members and members don't subscribe to American centric views. If your jokes cause misunderstandings and pushbacks, you should apologize and explain it to others that it was a joke instead of telling others to be less sensitive. And don't make similar jokes in settings that you could be misunderstood again.