Auto-Refresher wouldn't be much of an issue if Warcraft read the correct region from OS X. For anyone outside the US, Warcraft enters the wrong default chat channels (US always) and custom games are broadcast to mainly US players first.
With the rising trend to label the games with the country (for low latency), this is becoming a huge issue - hence a slow fill rate.
BTW, the region issue has been broken from Diablo/Starcraft as well from at least OS 8 (I can't test OS 7). It has carried over to all their games. All regional control panels have been set correctly.