Just noticed today about the anti-karma and then was like if everything has its opposite, even christ has his anti-christ then karma has its opposite too anti-karma.
(also christ which derives from chrisma and karma are synonyms if not anagrams.)

Here's how the anti-karma works.

It punishes those who do good and rewards those who do evil.

And we can see this all around us, evil guys live like kings, good guys live poorly and suffer.

You kill/destroy and consume another lifeform, you get rewarded by getting to live another day and feel good with a full stomach.

You spare another lifeform and let it live, you get punished with the pain and suffering of starvation.

And the list goes on.

So, why no one told us about the anti-karma?

Oh and since everything has its opposite, then justice has its anti-justice too.

Meet the anti-judges from the entertainment industry! Which i suspect we get to see them in afterlife in the anti-judgement day.

Where evil guys are judges and punish the good guys.