On English Wikipedia, the VE is now not offered for anons & people who have not enabled a user pref.
However if the user loads a URL that invokes VE (i.e. includes ?veaction=edit), it would be nice if VE loaded irrespective of user preferences. If ?veaction=edit in the URL isnt explicit enough to bypass some checks, ?veaction=edit&debug=true should just do it.
That would streamline testing in many browsers, as we wouldnt need to log in on each browser - which is a bugger because logging into a second browser causes the first browser to be logged out.(bug 49890)