It’s not a Reddit thing. I also remember the days when everyone online was a libertarian. But Conservatives then turned to nationalist ideologies that don’t emphasize the free market, that are anti-immigration, and that take a dim view of personal sexual freedom. There are fewer people expressing libertarian points of view all over the shop. There’s a good article about it here: https://www.newyorker.com/magazine/2023/06/05/the-individual...