Consider the flow of events:
- User A asks a question
- User B answers it
- I downvote the answer with a comment explaining the downvote
Now that they understand who downvoted their answer, they just go to one of my answers / questions and downvote it. To avoid this, I have the following options:
Downvote without an explanation - The answerer wouldn't come to know who downvoted their post and also wouldn't be able to know what's wrong with the answer. If nobody points out the mistake, it'll remain as it is. I'm not sure if this is a good thing. If answers contain incorrect information, it should be corrected (or deleted).
Ignore the downvote and move on - This is the easiest solution. One downvote is not an end of the world. I could simply ignore the (revenge-)downvote(s) I receive from the explanation and move on to the next question / answer.
I've already read similar posts on Meta and I understand that serial downvotes will be taken care of -- and that I can e-mail Stack Overflow team if the downvotes follow some sort of pattern.
What's the best way to handle this issue? Should I just stop explaining the reason, just downvote the post and move along? Or maybe I should leave a very polite comment explaining what's wrong with their answer. If so, how?