> If your decision not to use jQuery (or another lib that makes your life easier) is because of performance then you're optimising much too early.

LOL. That's the stupidest thing I ever heard. This is John Resig, isn't it? :)

> Personally I optimise for developer time first and raw performance much further down the line.

Yeah, you just set a new precedent. :(

> And dom querying is not usually the bottleneck in most sloppy sites...

You are allowed more than one bottleneck.

> its way too many event listeners. And jQuery comes to the rescue once again with extremely easy (to read and write) event delegation.

You just have no frame of reference.