CapnCrack
CapnCrack, also known as "The Capn", is one of the possible sleeper sock puppets of Wikipedia's infamous Willy on Wheels. CapnCrack vandalizes by adding bad edit summaries to articles after saving. His sock puppets usually involve pursuing sexual relations with female admins.
CapnCrack liked to pursue sex with female admins such as this sock puppet account named "CapnCrack assimilated BorgQueen's titties last night".