In monobook we had the right margin. In vector theme of this margin is not. There is a feeling (especially in VE) of infinity on the right and edit not the page, - some "corner". I changed CSS to .mw-body {border-width: 1px 1px 1px 1px; margin-right: 1em;} and this look is much more conventional, more like editing in usual text editor (ms word, lo writer), not so frightens non-standard form editing, directly feel more confident. In my opinion, the addition of right border&margin (may be just border when VE open) may contribute to greater popularity VE. http://i60.tinypic.com/f4l3kx.png
