Originally Posted by Claghorn
What's the etymology of "sock check"?
Sock puppet pre-internet - a cheap crude puppet device where the puppeteers hand is placed inside a sock. The puppeteer controls the sock as if it were a person separate from the puppeteer, but the illusion is transparent.
Sock puppet on the internet - a duplicate account created by a user to say things that the user would not say with his own account.
Sock check - checking to see if a duplicate account is a sock, or sock puppet.