We have a few here and in particular one that stands out above them all.
They want a sense of superiority. This is the most common group. They are not favourably predisposed to your messages. They either dislike the content, dislike the sender, or are looking to increase their self-esteem at your expense.
This group won’t debate with you on the core issues of the message, but score tiny victories by pointing out minor mistakes. Don’t engage the final group - especially if they end their message with snark . This group is highly resistant to any messages from you. Their needs are to feel superior, unchallenged, and increase their self-esteem at your expense.
This behavior often stems from the message challenging the recipient to change their ways. Instead of assessing the problem, they ignore it. Instead they react against the message and its sender.