How do I keep new user names from being posted on the main page?

[ski diva]

I recently began moderating new users before they're allowed to post. The problem is that the user's name shows up as a new member at the bottom of the main page before they've been validated. This is a problem, particularly if the new user's name if offensive. How can I keep this from occuring? I'm using 3.5.4.

Thanks!