I watch forsen a lot on twitch, and his chat streams at a hundred messages a second so no one will ever see your individual chat. It's awesome because it's like a hive mind at work. Everyone is spamming one emote, and then something on stream happens and then every single chatter simultaneously starts spamming another emote in reaction to that. It's fun.

For me smaller streams aren't fun because everything's (generalizing here) super moderated. No unrelated chat, nothing negative, no backseat gaming, etc. It's basically post something positive about the streamer or the game and that's it. Of course if you're watching your buddy with three other guys not applicable.