I have never heard about Bliz "losing" any characters - let alone any on Mag..... if you mean logging on to a blank character select screen - I can assure you that has happened on pretty much EVERY server and is not a symptom of "losing" characters but rather one of the character/login/game servers being temporarily down.

Unless you can substantiate your claims, I kindly ask that you stop spreading FUD about Mag. It is the same as any other server out there in terms of hardware stability.