>Any idea what the highest activity of the tear was? Or at least the past 6 months or so?
Nope - regarding IPs, I can only look back at posts that are still live on the board, and /b/ currently only goes back about 2 weeks

Best I could do is calculate the average posts per day using post numbers & dates found in whatever archives and screencaps have been made, plus whatever I happen to have written down from previous calculations