<p><strong>Background:</strong><br>
I was on Stack Overflow and they seem to have a lot more traffic and users there.  It seems to make sense to me because knew many more CS majors than stats majors in college.  This made me wonder about reputation-equality between sites.  I saw some decent reputation folks (~7k+, ~35k+) making posts that were downvoted to negative net values for basic errors.  That suggests that a ~7k on SO might mean much less than the same on CV in terms of representing expertise, or expectation of answer points given score.  If someone with only moderate expertise can get into the "aristocracy" of 10k+ then I am much less likely to give credence to an answer based on answerer reputation.</p>

<p><strong>Question/s:</strong>    </p>

<ul>
<li>What is the GINI score (or other appropriate measure) for user reputation across all of CV? SO?</li>
<li>How is each evolving over time?</li>
<li>How does each evolution relate to new and engaged participant
"acquisition" rate or to user disengagement rate?</li>
</ul>
