Everything is functional for me here in the UK.

I'm in europe and can't confirm, Desktop browser version works fine here.

I've seen intermittent problems with some of the features for the past hour or so, although it seems to be getting better.

Desktop browser, based in the UK.

What is accomplished by posting this on HN?

We can’t fix it for you, everyone who is trying to use Twitter is already aware that it’s gone AWOL, it’ll be fixed before most HN readers have seen this post, and Twitter’s own services monitoring site will give you all the details that are available.