On Threads I posted this question to Frank X Shaw, a PR exec at Microsoft, who I've known for at least 30 years. "Wouldn't it be great if there was a social web toolkit with the basic building blocks so we could experiment with different UI and behaviors. Why, after so many years are we still so controlled. When did we give up?" I think you can do the design with words and dialogs, btw. Here's a great idea for keeping threads focused and civil on Facebook. You can limit comments to people who have a stake in being on good terms with the author. This keeps the hit and run turds from dropping.