It's been a pit since around 2014, ramped up to the garbage heap in 2016, then went absolutely off the rails in 2020. All Musk did before now is formalize how bad it was by decree. This is different because it essentially undid what a lot of holdouts were using it for. I don't think most creators were as dependent on it as they believed, but it wasn't entirely learned helplessness. It's going to take work to weave their platforms back together now that they can't link to anything on Twitter.