What happened to this sub?

There used to be quality comments, from people who used to think about their answers. Now it seems most comments a one line snipes about someone they don’t like. Very few people engage to learn or share their perspective. e.g look at the quality of engagement in this old post - https://www.reddit.com/r/DecodingTheGurus/comments/okoxqd/special_episode_interview_with_daniel_harper_on/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button