Wider audience for commenting requested...
A proposal has started to allow established or trusted editors to edit via Tor, or other anon proxy. This discussion is located at
http://en.wikipedia.org/wiki/Wikipedia_talk:Blocking_exemption_policy talk page
The proposed policy in its "needs to be worked on" form is located at
http://en.wikipedia.org/wiki/Wikipedia:Blocking_exemption_policy project page
Best regards,
Merc
Postscript: I have also posted this to the foundation mailing list die to the large interest in this type of change, I believe it may be of interest to the foundation mailing list audience.