1) I would love for this feature to be added but for now all you can do is reload the page while it is recording your voice as I've done this and it didn't post.
2) This is an okay feature I guess and the only reason why I'm saying it is okay is because staff members will have to work extra hard if there is anyone causing trouble in the private rooms.
3) I would love for this feature to be added too but for now all you can do is clear browsing data (clear history, cookies, cache and more).