Here's a suggestion: Whenever you encounter a question that has been unfairly downvoted, you, in turn, should have an option to "downvote the downvoters" . By

Here's a suggestion: Whenever you encounter a question that has been unfairly downvoted, you, in turn, should have an option to "downvote the downvoters" . By clicking on a button, Stack Overflow will flag all the downvoters as "persona non grata" to yourself. When you view other questions, these people's downvotes will be subtracted or eliminated from your view of the question. Complicated? Yes, but SO's long-term viability may be at stake.