User blog comment:Sannse/Important Updates on Wikia’s New Look/@comment-1154266-20100929130711/@comment-8-20100929194627

Most new features aren't available in Monobook (which will still be available as a personal choice when we switch to the new look). And in both Monobook and the new look, you can remove anything you want to with your personal CSS.

Some features will remain optional (for example, achievements), but they need to be turned off directly rather than with CSS or JS. You can request this via Special:Contact