Michael Hiltzik earns a mention in the Wikipedia entry for “sock puppet”:
“Sock Puppet” is also an internet/weblog term for an anonymous alias duplicitously used in the comment section by someone who is better known by another name. For example, L.A. Times Columnist Michael Hiltzik came under fire in April 2006 when it was revealed that he was anonymously posting under the “sock puppet” name of “Mikekoshi”, and possibly “Nofanofcablecos”, to attack those critical of his writings. He did this both on the blogs of his critics, and even on his own blog in response to hostile commenters.
I quote it here for posterity’s sake, because Wikipedia fame is fleeting: here today, gone today (one second later).