http://en.wikipedia.org/w/index.php?title=Wikipedia:Requests_for_adminship/Armedblowfish&oldid;=136240411 
"(...) AB has made nearly 6000 edits to the project, with about 2500 of those being to the mainspace. AB has been a member of Wikipedia's Mediation Committee since July 2006. (...)"
"(...) AB edits Wikipedia from a Tor proxy (...)"

Moreover, according to  it is OK to use TOR: http://en.wikipedia.org/w/index.php?title=User_talk:Jimbo_Wales&diff;=prev&oldid;=143559040

Cheers.