The reason for this question is to find the answer to another question. At this moment in time:
On StackOverflow : http://stackoverflow.com/users/573261/richard-aka-cyberkiwi
On StackExchange : http://stackexchange.com/users/eb9ed114e20e4d79ad7869fa92413e04
I had always though that the SE family was just one big database.
It would be nice to get an answer to why the counts don't match as well.