I've seen this a few times, where an answer is given, and all it says is "This is a bug, see this link...", etc.

This post is an example (at least one of the answers is, it came up in a review).

Is revealing a bug report (ie, showing that a bug exists in the system that causes the problem in the question) a suitable answer to a question?

In my mind, answers should try to solve the problem in the question. I don't think simply reporting a bug solves the issue. Commenting that the problem is a reported bug seems better.

Then again, some questions cannot be solved, so the answer to the problem is "There is no solution" or something like that. What are your thoughts?