This is especially needed for any Windows application. It would save the typical user from his/herself. So many apps want to install a toolbar, take over as the default choice, or select some other intrusive behavior as the default. If you could have an app that you run before launching any kind of installation program, and that app just unchecked all the defaults, forcing you to choose the options that you feel are best, well the world might explode.

Why does snmpd try to log everything by default in Fedora? If you’re polling every five minutes or so for MRTG or a commercial product like Solarwinds, you might find /var/log/messages filling up with successful connection messages:
Oct 22 04:00:01 ServerName snmpd[2089]:last message repeated 5 times
Oct 22 04:00:01 ServerName snmpd[2089]: …