<p>I view data cleaning as on-topic here: it is a fundamental, if somewhat unglamorous (and underappreciated) aspect of data analysis.  But, in keeping with this site's approach and philosophy, we would want to </p>

<ul>
<li><p>welcome answers that focus on principles and generalities which would apply regardless of one's computing platform, and </p></li>
<li><p>migrate any threads that focus <em>exclusively</em> on which commands to issue or buttons to push in one particular platform.</p></li>
</ul>

<p>Migration to DS is always possible: when voting to close as off-topic you could include a comment with this suggestion; moderators (who can designate any SE site as the target) can then act on that comment.  I have migrated exactly one question to DS since it opened, so I don't think it's an act that will happen so frequently that it needs its own option in the list of closing reasons.</p>

<p>BTW, given that DS looks almost certain to fail, any question that might have any value here, no matter how peripheral, probably should stay here.  I would advocate migrating only questions that are very clearly not on topic.</p>
