<p>If a poster won't act on your comment alone, they likely won't act on anything else (less than closure). </p>

<p>It does sometimes help to be specific when asking, to mention the word <em>edit</em> specifically; some posters hang around for an hour or so and may fix their question if you catch them early.</p>

<p>If they do clarify in comments, you can always edit to include the details if need be.</p>

<hr>

<p>In relation to whether to flag to close or whether to vote to close:</p>

<ul>
<li><p>When you're able to take an appropriate action to deal with or partly deal with something yourself (like vote to close) you should take that action.</p></li>
<li><p>flagging notifies moderators that you think there is something <em>they</em> should do (above what ordinary high-rep users like yourself can). When you don't have relevant voting privileges it makes sense to use the flag option for a closure. If you voted for closure but a good while has passed (many hours at least, perhaps more like a day, say) and you don't think it's going to close from lack of attention (but should still close), in that case flagging also makes some sense.</p></li>
<li><p>in cases where it's important for a moderator to see it or something that's urgent, then you could both vote on it and flag it appropriately</p></li>
</ul>
