WOD launch issues results from merging realms?

[Javster]

I've been playing on semi low populated server for 6 years. I've never seen anything like this. I'm wondering if the merging of realms has anything to do with these issues. At launch, Cats had 12 million subscribers, the last tally had is sitting at 7 million or so... We had zero issues during the Cats launch...

[Deleted]

It's a good point and I thought the same. The server tech today is totally different to that which Cata launched on, it's all phased, merged, cross-realm, all designed to keep players together. "Realms" are not single, physical servers and haven't been for a while.

So while it was clever tech to disguise the fall in subs, it looks like this xpac has brought enough people back to cripple it.