I think that the Forum Board did not pass the math lesson
"11 users active in the past 15 minutes (4 members, 0 of whom are invisible, and 5 guests)."
4+5 = 11!!!!
it does this all the time...
that's because there really ARE 2 invisible members, but since they are invisible, you can;t see them.
Its moderator magic
"6 users active in the past 15 minutes (3 members, 0 of whom are invisible, and 1 guest).
Baidu, Google, j0hnnn, mqstout, PJON"
Looks like non-blessed users don't count in the list. Baidu, Google are only black (not blue+) users, so they're uncounted in any of the categories. The other is "guest" which means "not logged in".
Baidu and Google are browsing for the search engines... they don't count as members, but they influence the count. Wacky logic indeed.