An obligatory link to an article by Evan Miller about ranking: https://www.evanmiller.org/how-not-to-sort-by-average-rating...

However, to get the following requirement from the article:

> The algorithm should not produce false negatives, the community should find all high-quality content.

it might be better to estimate the upper confidence bound, like in Upper Confidence Bound bandit, rather than the lower confidence bound.