- have been answered in the comments
- could be answered by making an assumption or two
- could be flagged as poor-quality questions.
If I'm confident of a solution to a question like this, is it acceptable to answer the question to the best of my ability, or simply leave it alone? I would prefer not to make assumptions about what the OP intended, but in questions like this one, the answer in the comments seems to have interpreted the error message well enough to solve the problem.
How should I approach this? If I post an answer detailing the content of the comments, that reputation shouldn't belong to me (in my opinion) but I still feel the question should be answered. Other discussions about a similar issue don't fully answer my question because I'm specifically referring to old questions. Should I still flag old questions, or forgo it to prevent the flag queue from building up?
EDIT: One possible example of this would be this question, since the answer was basically already in the question and comments. It's not a great example and perhaps not completely necessary, but I marked the answer as community wiki so it can be edited, deleted, etc. as seen fit.