I think it would be cool to make it so that when someone gives rep to you, it sends a copy of the information (who, how much rep, the comment, the thread, etc.) in a PM, so that not only would it be easier to save that information (for people who like to save that sort of thing, like me) but so that people using forum apps on mobile devices can know when they receive rep, since there currently isn't a feature that shows rep gains on tapatalk.