Twitter's Lonely Follow Button

The Follow button on Twitter feels strangely out of place. The left side of the page has the Tweet to and Message actions. I tend to look there when I want to follow someone. But the Follow button is all the way on the right.

Hanging out all the way on the right...

It’s above the Who to follow section which kind of makes sense. I’m unsure if the current three column separation is ideal. Perhaps a two column version where the Follow button and Who to follow section is integrated into the leftmost column would be nice, but I can see why Twitter would want to jam-pack as much stuff as possible above the fold.