That is an impressive number of bumps, 10 in one year. But to me it looks wrong to have so many bump records.
If the auto bump period doubled then it would appear three times in year 1 and once each in years 2 and 3. That would still look bad from my point of view.
What is the Number of open topics to automatically bump daily?
With 10 bumps per year for one topic, i.e. one every 36 days, and 3 topics bumped per day that would be only 108 topics available to auto bump. I wouldn’t enable auto bump for that few.