Geo signals

[jbradleychen]

From the current draft, "There are 7 classes of signals..."

There are definitely abuse scenarios where knowing reliable country and finer-grain geolocation are important. For example, laws for copyright abuse vary from country to country. Also useful for detecting impersonation scenarios (e.g. a user in the US pretending to be Canadian). Would this be a new class of signals? Or does it fit in someplace?