I had no idea futurology was that big. I remember years ago when it used to be a singularity/life-extension/transhumanist subreddit, and then it got brigaded by climate change activists, to the point that most of the articles on the front page were about clean energy, rising sea levels, and recycling. Also a lot of doomer types actually bemoaning life extension outright, because of the usual nonsense about "where will we put ALL THE PEOPLE" and "Drump will live FOREVER." I stopped checking it out years ago, but it serves as a case study of how entryists co-opt and destroy online communities.