@Fil pointed out on d3 slack a couple days ago that his notebook about ‘multitouch’ seemed to be much further down the trending page than he expected given its number of likes. Someone there suggested that perhaps the algorithm takes into account the age of the likes.
I think the same thing might have happened to my notebook here (ironically if that is what happened, it’s Fil’s like on my draft notebook 3-4 weeks ago that is likely bonking it):
Is Observable’s “trending” algorithm published somewhere? (Maybe keeping it slightly mysterious prevents some amount of gaming…)
Anyhow, perhaps consider dating pre-publication likes from the date of publication for the purpose of the ‘trending’ algorithm. Otherwise people are encouraged to do things like temporarily un-share their notebooks to clear past likes before publishing, or tell friends to avoid liking draft notebooks.