Not everyone would have made a ban report topic, so releasing the total number of users would be a meaningless number without the other half of the information.
BuddyAuth can't check bans either since sessions aren't bound to in-game accounts.
Its certainly not a meaningless number. Yes, everyone dont fill in a ban report but if we would have lets say 50 ban reports in a week and we have around 1k unique buddyauth users we can atleast get some idea of how big the banwave was. Instead of how it is now when we have no clue whatsoever.