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We can use the Data Explorer to see how often we up- and downvote. This query compares the number of posts (including deleted ones) and the number of up- and downvotes for all sites in the network. On MathOverflow, a post receives (on average) 5.29 upvotes and 0.46 downvotes.
Of the 176 sites in the network, we're #23 when it comes to upvotes per post, and #...
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I can answer this part of the question with the Stack Exchange Data Explorer.
What is the maximum degree of a node in $G$? How are the degrees of nodes distributed?
This query shows a list of questions with the most links.
Question
Number of links
Proposals for polymath projects
48
Examples of common false beliefs in mathematics
47
Not especially ...
9
Here are some additional SEDE queries. (As my knowledge of SQL is rather limited, take all of this with a grain of salt.)
Percentage of Upvotes and Percentage of Upvotes (multisite). MathOverflow currently gives 91.94%.
We can obtain average number of up/down-votes on post which weren't deleted if we look into table Posts rather than PostsWithDeleted. (But ...
Only top voted, non community-wiki answers of a minimum length are eligible
