<ol>
<li><p>There are some topics with a lot of overlap with stackoverflow (e.g. data mining questions) and I guess also math.stackexchange and mathoverflow (yes, there are even two sites for math!)</p>

<p>It's not always clear which site is the more appropriate place, and when to suggest people to use the other site. This of course also leads to cross-posts; these tend to get answered more quickly on the larger site (i.e. main SO).</p>

<p>IMHO it would be more helpful if this were more clearly defined, and if the "migrate" function was easier to use. The "close" vote does not include migrate to stats. IMHO, it should offer at least all sites the user is also active on, not just some random 5 subset.</p></li>
<li><p>My impression is that the easy questions are more likely to end up on main SO, while all the really tough statistics questions do end up here. To me this explains the lower answer and upvote ratio.</p>

<p>This makes me wonder: <strong>should we actually care about these metrics</strong>?</p></li>
<li><p>I tried chat on main SO, and found it pretty much worthless. Why would I use it here, then? You don't need "live" math, you need some time to think and write down your ideas in a well-formulated way.</p></li>
</ol>
