Don't show Effect/Rally Skills on chat embeds/popout
Rally/Effect skills show up on chat embeds. Some people may not want this to happen when they do to embed the chat on their site.
Another example is that a streamer may be reading chat through a chat popout (which uses the same URL that you would use to embed the chat) and may be distracting to the streamer. In the case of a Rally, it covers the whole chat (which makes it so the streamer cannot read chat), so they have to stop their game to click Dismiss.
Another possible idea would be to include an parameter for the embed that would disable effects and/or rallies.