Twitter’s research shows that its algorithm favors conservative views (2021)
theverge.com
theverge.com
Consider: “[current president] is ugly”
Versus: “[irrelevant nobody] is ugly”
And not only on twitter. Have you seen CNNs ratings lately?
If it was just negativity that sold news, and especially the 24-7 loops wouldn't be doing so bad. Ceaseless negativity and similiar are a sugar high for customer interactions. It inflates engagement numbers but it conditions them against using it long term once a breaking point is reached or outside events make them disengage and leave them with no reason to come back.