Realms now has a public issue tracker:
http://bugs.rohonline.net/

You can access it via Help -> Issue Tracker.

The issue tracker integrates with the forum (uses the same accounts) and the mud (if you are logged in, you will be informed about updates to your tickets).

If you find an exploitable bug, mark it as private so we can fix it without it becoming public knowledge. Be sure to mark components accurately - it will help us sort issues.