To think that someone as well known as some previous posters were, and could not be found out, is not realistic. If there were only one or two people on the Admin team, it might happen. However, with the team we have and the varied skills, which really are quite honed, it wouldn't take long for that person to be found out and blocked out. In fact, we have already had that happen on more than one occasion. Some folks thought they were so smart, but the "super ninja" Admin team, in short order, blocked their access.
Certainly not saying we're infallible, but we're good!
(I always like saying "we" when there are people on a team who are so much better than myself!)