BTER is based in China. Bitcoin is illegal in China. You risk having your BTC locked out by the China Firewall or confiscated by the Chinese National Police.
Nor do you have a recourse if your coins are stolen.
BTER has had many coins stolen. they want you to use GOOGLE two factor authentication,which you will have to installon yor smartphone.
And still the top exchange is China based...
Any evidence to Bter "stealing" any coins, before you throw these accusations?
Also, two factor authentication is actually a very good security measure, and practically is a standard today.