I think it should treat any account type equally - be that Twitter, LJ, or in the future Tumblr, Facebook, etc - and show the relevant options for the one that's selected.
+1, though at least disabling those fields to get Twitter working would be enough to indicate they don't apply before the page can be changed.
no subject
+1, though at least disabling those fields to get Twitter working would be enough to indicate they don't apply before the page can be changed.
Maybe a separate bug for the UI?