I imagine that SE tracks IP addresses and keeps a chart of where people are coming from. It helps with advertising and legal decisions.
I know SE doesn't require you to tell, but what do we know of the racial and gender demographics?
If there really are no directly meaningful stats, as I suspect there is not, then what can we infer from the stats we do have?
For example, we probably know where a lot of users log in from, and we can easily look up the average demographics of those areas. We can also look up demographics for this site's topic. We can also take into consideration that a large percentage of us seems to be involved in professional IT work, so we can utilize stats from that industry as well. Can at least a best guess be made as to the racial and gender proportions of Christianity.SE?
As a last ditch, would it be appropriate to hold a poll here on meta or somewhere else?