Yes.  You most certainly are.

DarkStar_ has zero obligation to you or anyone else to name names as far as who complained about that guy's posting habits.  The same situation has occured in lots of other campaigns, and neither the Chipmixer campaign nor DarkStar_ as its manager are unique in that respect.  If a member is consistently producing low-quality posts and is getting paid for them, there's a good chance someone is going to pick up on that fact and report them to the campaign manager--and that's what should happen.

I'm pretty sure this has nothing to do with Kalemder's nationality and everything to do with the quality of his posts (which I haven't taken a look at).  DarkStar_ is an excellent manager and I would trust that he didn't make a snap decision based solely on a report from one member.  I'd bet that he took a look at Kalemder's posts and came to his own conclusion. 

It's not a good idea and I'm sure whoever it was would get shunned, flamed, or worse if he was named.  Even the existence of this thread suggests there might be a lynch mob waiting at the saloon.