I'm embarrassed by a lot of comments here. I thought people on this forum would know better. It's like I'm watching a car, with smoke and flames pouring out from under the hood, pull over to the side of the road and people running up and checking if maybe it needs new tires.
You could probably rewrite the front end in applescript and you'd see little difference, and if you did just throw more servers at it. The problem is probably that theres a DB at the heart of all the message crazyness, you can't do that and expect to scale.
I am Ruby learner. The way ruby works with DB is problem for novice. If programmer don't do careful coding for caching then it is bound to cause problem. Ruby hype is all around auto code generation and simple coding/scripting. But when you are writing enterprise level apps then there is more to consider.
You could probably rewrite the front end in applescript and you'd see little difference, and if you did just throw more servers at it. The problem is probably that theres a DB at the heart of all the message crazyness, you can't do that and expect to scale.