The thing I'd like to see most to go along with every run is timestamps for the highlights - lucky rare drops (even if not useful for the runner), close calls, etc.

thats prolly way too much work for most runners in this game ;)

Twitch clips kinda allows people to do this themselves! I'm sure if someone wanted to really show off their luck or close calls they can, but it shouldn't be a requirement. Remember, rewatching your own run to find clips/timestamps is twice the time investment from just doing a run and hilighting it