Common sense kicks in at different points for different people. Some people still don't have the common sense to check the fuse box when an electrical part stops working. Other people don't have the common sense to not tell a moderator/admin to fuck themselves.
I agree. People should be smart enough to realize Chicago is in Illinois. People should be smart enough to realize a lot of things. They just don't. So we have to ask you to provide it for them. Sucks, but it's the way the internet is making people stupid these days.