In this specific case, we decided to replace 'super' with 'senior' to better reflect the relation to plain old 'moderator'. That has more to do with how we work internally as a team than how we interact with the community.

You'll also notice that some people now have 'developer' tags. It means that those people do not perform mod duties, but instead work on the site itself (configuration, coding, design and graphics, maintenance, etc).