Suppose you want to
- earn your Altruist badge
- get rid of some rep you feel was ill-gotten (like an exceedingly simple answer that was upvoted into oblivion)
- generally spend some rep
And you don't personally have a question that you need answered. What questions in the Stack Overflow ecosystem would benefit especially from some bounty love? How do I invest a bounty for the benefit of the question & answer base?
- How can I identify those questions?
- How can I find some outside the tags I frequent?
- Are there characteristics that define those questions?
- Do you know any specific questions that could benefit from a bounty?