Incorrigible Troll (talk+ · tag · contribs · deleted contribs · logs · filter log · block user · spi block · block log · CA · CheckUser(log) · investigate · cuwiki)
For archived investigations, see Wikipedia:Sockpuppet investigations/Incorrigible Troll/Archive.
A long-term abuse case exists at Wikipedia:Long-term abuse/Incorrigible Troll.
This SPI case may involve cross-wiki abuse. Please consider reporting the results on Meta; checkusers can send an email to the interwiki checkuser mailing list if required.