Yeah, I have no doubt there's discrimination on the forum, though I haven't noticed (or participated in) much of it lately.  China is a bit of a ticklish subject in a lot of people's minds these days, so it's not surprising to see even blatant anti-Chinese sentiment being expressed.  I'm pretty sure I've posted some myself.  However, I want to clarify something on my part: I have nothing against Chinese people; I have a problem with the Chinese government. 

I also don't care for the Chinese culture of counterfeiting goods, and if you can argue that that isn't a thing, good luck with that.

A few years ago I had a problem with Filippino shitposters, and I regret that I made some pretty bad statements directed against them--I was fed up with the shitposting, and everything I wrote just reeked of nationalistic bile.  For the record, I have nothing against the Philippines or Filippinos or any other nationality or race.  Sure, there are aspects of different cultures I don't like, but when I meet people in real life and it's just two people talking....all of that goes away, magically.  So I guess I've changed.

However, even if there is prejudice, racism, or discrimination on bitcointalk, it's fully allowed.  I wouldn't even want to change that, because it would mean the mods would be censoring thought, however offensive it might be.  If you feel you're on the receiving end of any of that, it's up to you to defend yourself, and you should do so without fear of retaliation, IMO.  One thing about being a member of the forum is that you ought to have a fairly thick skin.  If you don't, you should thicken your skin ASAP.