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?
EDIT: Seems the one answer linked above was removed, but it was only one example. The OP answered his own question, with an appropriate solution to the bug.