Oh, all my formats are on AUTO, so I'll have to find out which list has GeoIP format.... :-(
So I have to go through all the non-custom lists? This could take while, and I don't know what to look for. Maybe there is a keyword like GEO-something?
EDIT: there might be an easier way, I just sift through the update.log of pfblocker and discard lists that show something like "Classifying repeat offenders by GeoIP".
EDIT2: Oh, the reputation functions dmax and pmax use GeoIP! I turned these on a week ago or so.... Embarrassing, I should have made the connection!
Thanks @Bob-Dig , I am confident that turning reputation off is the solution.
Will report back if I am wrong..