<p>Here's a bump to this thread: Codidact now has a <a href="https://math.codidact.com/" rel="nofollow noreferrer">Math.Codidact site</a>, with scope</p>
<blockquote>
<p>General Q&amp;A about all branches of theoretical and applied mathematics, including closely-adjacent sciences where the central question is about the math.</p>
</blockquote>
<p>This seems to have a certain overlap with CrossValidated, though a lot of our content here would apparently be off-topic there. It might be interesting at some point in time to create a statistics site there. But as others have written here, the network effects of 167,766 questions at CV are strong...</p>
