These are quoted reasons from Jens Erik defending region lock on official servers:
“The region lock does not affect Russia and South America. It just means that players from Asia can’t play on official North American or European servers, but official servers in Asia will be introduced this week. Players anywhere can still of course play on the thousands of private servers which are available.”
“We have decided to East/West region lock the official servers for three reasons,” community manager Jens Erik said in a Steam forum post. “The language barrier and the different playstyles is proving jarring for a lot of players. Also, the vastly different time zones between regions made offline raiding an unavoidable issue for a lot of players who would wake up to all their stuff being completely ruined.”
This is exactly what is happening on the No ping OFFICIAL pvp servers (1930, 1932) . Are No-Ping servers no long official? Guys we only have 2 no ping servers for all who can’t away ping below 140 (rural, wireless, don’t live in a city) but we are still aleast playing in our region and would like to be able play with others from there too and understand them. It is very hard to play with people when you can’t even read what they say!