Then explain to a simpleton like me.
Ayers knew this picture would likely be on Breitbart’s website. So, the backwards “V” was likely meant for those who are conservative.
It’s an old English slang for FU. That’s probably all that is meant by it. It’s probably not meant as anything else.
Those who wanted to take Breitbart or anybody else out can do it without the assistance of Ayers.