The poll results show the real sentiment, that close to 30% of people actually like synchronous chat. That is a significant chunk. Perhaps there's an unmet market need for a product that both excels at synchronous and asynchronous communication. I could see potential for a feature in a chat program where a message or series of messages could be selected and enshrined in a search engine-indexed synchronous knowledge b…
The Rust community has had great luck with Zulip for that. It works well live, as well as asynchronously, and the content remains useful and findable later.
(We also have forums, which serve a different purpose (longer content), as well as GitHub.)