Moving goal posts much?
Just because I showed pictures which appeared "post-slavery" does not necessitate that those actions did not occur during slavery,
Mischaracterizing much? Just because I said the lynching phenomenon happened primarily during post-bellum, doesn't mean it didn't exist during antebellum.
However, just as common, probably more common, was slaves being tried in actual courts for crimes. A little research will indicate the historical dockets are full of them.
Take the case of Celia in Missouri, 1855. She killed her master and put up a defense that she was the victim of repeated rapes by the master. After an involved trial, she was found guilty, and helped to escape from incarceration by sympathetic whites. She was recaptured and allowed to appeal her case to the Supreme Court.
Never heard of something like that? I'm not really surprised. If everything I knew about history came from what I learned from Hollywood, or what I was fed in high school and college, I would have never heard about anything like that either.
If you have an interest in history, read history on your own. Don't rely upon caricatures created for political ends or entertainment.
That said, from what I've read accounts like those of Celia seem to be most common in the border states and coastal areas, as opposed to the deep South. But I never really sat down to do any type of accounting, nor has any historian that I know of. If you're really interested, there's a project for you...