<p>We're all of us obtuse from time, so assuming good faith &amp; engaging in an honest attempt to find out what precisely the commenter thinks is the issue will almost always be the best option. If they don't want to elaborate, consider flagging their comment as "no longer needed"&mdash;the flip-side to comments' not being down-votable is that the bar for deleting them isn't as high as for answers. But if this is repeated behaviour, &amp; you think it's to the detriment of the site, do flag one of the comments &amp; explain what's been going on.</p>
