<p>There are two separate issues:</p>

<ol>
<li>Site quality. In general, good SE question is a question which can be also generated by an independent asker; exam questions and homeworks are usually too detailed or just useless in practice, what effectively makes them only a noise.</li>
<li>Ethics. Giving a direct answer to current homework is obviously unfair, and so we have a (probably not too effective with a respect to people who want to cheat) policy that an asker should mark homeworks with homework tag and this should notify the answerers that they shouldn't give straight answer but only some hints.</li>
</ol>

<p>In case of the old exams, I'm mainly worried about the first one.</p>
