<p>This <em>is</em> the nuclear option. If all else fails, it will be the solution. </p>

<p>That said, I'd like to try a few other things first, and see how they work out. </p>

<p>First off, we have a gigantic backlog of questions with pending close votes on them. Many of these may need to be closed, but few should be migrated. <a href="http://meta.stackexchange.com/questions/151890/disable-migration-for-questions-older-than-60-days">A recent change</a> to how migration works removes that possibility for about 8.5 thousand questions with outstanding votes - that's a pretty sizable chunk. </p>

<p>Second, <a href="http://meta.serverfault.com/questions/3800/changing-the-site-subtitle">I've implemented this suggestion</a>:
<img src="https://i.sstatic.net/7Qqxf.png" alt="The appearance of the &quot;belongs on serverfault.com&quot; option on Stack Overflow"></p>

<p>This is fairly subtle - but it's worth a shot, since a reoccurring complaint is that folks on SO don't understand the scope of this site. I'll be watching to see if it has any effect. </p>

<p>The % of worthwhile migrations does seem to be fast-diminishing, but there are still a number of questions sent over from SO that are not only accepted here, but <em>do fairly well</em> - up-voted, answered. If this becomes such a small portion as to be expendable, then so be it. </p>

<hr>

<p>Small update: so far, this is <em>not</em> getting better, week-to-week. It's getting worse. A lot worse. Last week saw over 70% of migrations rejected. I'm becoming dejected.</p>

<hr>

<p>Server Fault has been removed as a migration path on Stack Overflow. </p>