To be fair, while I don't really have an opinion on whether or not this beta is ready since I'm not in it, WotLK beta had entire zones(most noteably the entire DK starting zone) nearly completely broken and in shambles until a massive patch two weeks before WotLK was released.
Post count doesn't really make a difference. Many of us lingered for years before creating an account. However, there really is no need to insult anyone. Let's simply discuss the theory. I don't think Blizz is necessarily tied to being a few weeks later than the book, but I would imagine that is their goal.
ok taking ehat we have here in beta right now the first two instances near completetion the starting area for the trolls humans,worgen and Goblin are done and just need feed back to retune the smal stuff Vash'jir and Hyjal are being tested. now deepholme very buggy from what ive heard from many of the beta testers.
Ok so thatl eaves us with Talent Reconfigurations and the fine tuning process not to mention the sub reseources for Paladin,druid and Warlocks(Which holy power and lunar powe ris not even out yet.....then the 3 new battle grounds we are getting which really wotn take much time since its bascially a map without quest and just need to test it in terms of bugs with the graphics.
Id say around 4-5 more months of beta we still have to go and that is still stretching it but i think they have a general idea with the talent trees.