An extension of this question.
When a user shows some some major conceptual mistake in his or her question, I often see users post answers and comments that are only marginally helpful and are often condescending. Two examples follow.
This image (very tall—displaying it inline would hurt readability), derived from this post on Physics, points out an issue with earlier revisions of the OP's question, with comments that belittle the OP. Is this the tone we want users to see here on Stack Exchange?
This older question on Stack Overflow has one answer which simply tells a user to read a book. Again, consider the comments to this answer. While this issue has been discussed before, I think there's a more serious problem evident in the voting patterns.
If you look at the vote counts for both the answers and comments, it becomes evident that users like bashing others for being wrong, and, more critically, users like seeing other users getting bashed about the mistake. This is perpetuating the negative conduct we don't want to see here on Stack Exchange.
Consider the following comments:
+12: Consider the possibility that you yourself do not understand what we are getting at. – Emilio Pisanty (source)
+21: ~Shadow No, you don't understand. – anon (source)
Do these comments really deserve that many upvotes?
Should we remind users not to condone this kind of ad hominem incivility (through voting or otherwise) and remind users to follow the code of conduct when posting? What's your take on this issue?