Wow! That’s insane. Had never heard of the Haiku Stairs before seeing your post, but I just read up on them. Too bad they’re closed … almost worth paying the fine though.
Another fun fact I learned on our last day on O’ahu is that city of Honolulu highpoint Konahuanui (3,150 feet) is #6 on the list of “selected” city limits highpoints over on peakbagger. The name of the peak literally translates to “large testicles.” No joke.