There is an API that works on GridSurvey website. So there are multiple avenues where an automated data collector can collect stats, in addition to the Second Life login screen.
Second, GridSurvey posts the names of all the regions it finds. So if your region is not on the list, you can say, "hey, they missed my region." Or if a region is on the list that's been gone for months, you can say, "hey, they're still counting that region even though it's gone."
I have not seen any reports that they have inaccurate data. Not from the Lindens, not from residents, not from anyone else. In addition, their data is in sync with other data sources, such as their chief competitor, Metaverse Business
This comment was originally posted by Maria on the "The Sweet Smell of Desperation" topic.