I'm no javascript developer, so I see it only from the user perspective. Maybe the developers aren't doing a good job, I don't know. But all javascript gui I've tried (gmail, mibit, meebo) are far slower than any other e-mail reader, irc client and IM client I've seen, respectively. And the javascript clients lack lots of features, which I think is probably due to javascript being so hard to program.

If the goal of the web is to deliver a good platform for running programs, shouldn't javascript, DOM, or whatever it takes for writting programs for web be reviewed?

When I said I wasn't a javascript developer, I meant I never actively wrote big programs in it, but I did a bit of hacking with it. I found it much more annoying to program than python, for instance.