Oh, I should have looked at that table earlier. Just to make sure: When I have a private forum (so no anonymous users) with 30 users the max view count for each topic would also be 30, right?
I was already thinking about how I’d import the original view count from phpBB3. Now it looks like this would be a stupid idea anyway. Importing a view count of 7K doesn’t make sense when the counting algorithm is completely different.
Not that I’m complaining… the behaviour is just unexpected. Well, at least I’ll know now how many users have seen a topic.