You say that like I do it for selfish reasons... You're not completely wrong. But I like to wait until they're on Youtube before I go through them. The Twitch videos aren't archived forever, so if they get edited slightly before the Youtube upload, it would throw off the timestamps. If people want to help out, though, they could always read the archived Twitch chat and transcribe any questions that were answered there. Those, obviously, aren't included in the Youtube version.