>Reddit, at one point, was just science, memes, an occasional atheist post, and and A list Celebrity AMA every other day - a platform that provided niche content mostly for age 18-30 year old Americans.

This seems to mostly outright ignore some of the more controversial subreddits that existed/flourished in the past. There was a significant amount of content, including entire subreddits, dedicated to sexualizing minors.

It feels revisionist to think reddit has only recently become flooded with controversial content.