"It depends". If I'm getting this out of a user support case, I can't really do that. The support person in question might get an earful... actually, tense correction, support people have gotten earfuls from me on the virtues of filing the moral equivalent of "it doesn't work"... but for the customer's sake I can't just smash the bug report closed and smile smugly.
If users want you to fix a bug, they should assume you're an idiot and can't extrapolate what their problems is from the title alone.