This isn't from HN, but I've noticed an implicit bias against devs from South and Southeast Asia (can't speak for China). On my resume, I go by the shortened form of my first name, not "eksith" and that was a conscious decision after putting my full name resulted in very few calls and emails. I'm not sure if that has to do with a perception of talent or simply a presumption of a language barrier, since I've also seen…
I have had several professors/GTAs at uni who are native Indians that I highly respect for their CS knowledge. The accent can be a little hard to pick up at first if you've never been around it but after that its all gravy :) Likewise I've had some who I've completely despised, just like every other person of every other ethnicity. I'm sorry you have to deal with that.
Edit: expand on last para