Is it just my imagination or is the ratio of good questions lower for users whos name is "userNNNNNN"? Or is there just a glut of smelly questions lately and there happens to be a large number of userNNNNNN users now?
Is this testable?
Similar to Correlation between reputation and use of actual name on SO, but possibly more testable. The marked answer there uses statoverflow.com which seems to no longer exist.
This naive query
select count(Score) as [Count], avg(Score) as [Average] from Posts where OwnerDisplayName like 'user%' union select count(Score) as [Count], avg(Score) as [Average] from Posts where OwnerDisplayName not like 'user%'
Produces this result
Count Average ------ ------- 350 1 626458 3
I would have thought it to be less than 1, but it looks like
avg() rounded or truncated. And 626,458 posts (non 'user%') seems low. What did I do wrong?