<p>A few hours ago, I posted a comment and an answer to a <a href="https://stats.stackexchange.com/q/590626/1352">question</a> (deleted questions are only visible for users with enough rep). Someone had found a nonstandard parameterization of the negative binomial distribution in some paper; I commented whether they could add a link to the paper and a few minutes later answered that the parameterization was nonsensical, because the PMF would be convex.</p>
<p>Now the question seems to have disappeared down the <a href="https://en.wikipedia.org/wiki/Memory_hole" rel="nofollow noreferrer">memory hole</a>.</p>
<p>It's not among the questions on the main page. It's not among the &quot;recently deleted&quot; questions. I see neither my comment nor my answer in my profile.</p>
<p>That's not the first time something like this has happened to me. It's a bit frustrating to invest a couple of minutes on a post and then have it simply disappear. Can anyone (mods?) tell me what is going on?</p>
