Social media under the centralized model have been declining since 2017. Taking Twitter as a case study: I do miss the social climate of Twitter from 2013 when I started up until the end of 2016 - it was an "anything goes" situation and that was before the network went through multiple massacres, so intelligent people were still sharing freely. That situation continued in reduced form right up until Covid. During this time was when I mostly developed my philosophy on health and fitness that I still use and which helped me achieve the best condition of my life from ~2019-2022 (to give an example of what it was good for in practical terms). Sadly it has been in steady decline since then and no interventions have been able to arrest the decline. There just isn't the social scene that would enable very good discourses even though such are still possible in much reduced form. On X, your posts will not even surface most of the time, even when you have 1000+ followers. It just isn't set up for discussion; it has become a personality cult app (which arguably was its purpose all along). I take X-Twitter as a case study for a larger trend because it has represented both the best and the worst that the centralized social media model had to offer. I would love to see something similar to the 2010s era, pre censorship Twitter appear, but there is no place that has both the unrestricted speech and the huge network that fits the description. And I don't think there will be one either.