When someone offers criticism of something you did, or failed to do, you can have a discussion about the thing being criticized. It may be a hasty decision, it may be a mistake you made, something you did without thinking through all the consequences. We learn from astute criticism.

In contrast to legitimate criticism, there is the way of the hater. You reduce the person you now hate to the sum of their faults. No discussion is possible with a hater. Hate is the final, irreversible conclusion to any conflict with a person who hates.

Thankfully, we are not all fucking haters.