Obviously, try and deal with the situation diplomatically first. Tells, PMs, TS and whatnot. If that fails, which I suspect it will for some time, there will be need for BRs.
I am pretty sure the rules have been clarifyed, but I guess it could get an over clarification if needed. Emeriick, if something can't be solved simply through PMs then it is when a BR or a GM is needed. Its simple: report them to a higher authority if the situation cannot be resolved.
