alt Hacker NewsTwitter is a strange example given it has experienced a massive drop in valuation and ad revenue as well as struggled with user acquisition since Musk bought it. By all metrics it has declined in value except it where it serves as a powerful megaphone for the US right.
Twitter was a megaphone for the US far left, it's now more balanced and centred so allows both sides to post without censor. Obviously far left people hated this and moved to other platforms as they prefer to live in a nice woke echo chamber.