Active Users

"Active users" is short hand for "number of /16 subnet ranges to post on this board in the last 72 hours".

It is not a perfect metric and does not account for number of lurkers (users who only read the board and do not post) or the number of users sharing an IP range (for example, all Tor users are considered 1 "active user").

In the entire Internet, there are only 16,384 /16 ranges (also known as Class B networks), with 65,536 addresses per range. So, if /v/ has 3000 ranges ("Active users"), that means its posters represent 18% of the possible number of ranges in the entire internet. Many ISPs only have one or two ranges.