Simplicity by leaving everything switched off by default, but still sendmail and BIND the default MTA and DNS server. I know OpenSMTPd has come in now, but I st

Simplicity by leaving everything switched off by default, but still sendmail and BIND the default MTA and DNS server. I know OpenSMTPd has come in now, but I still never found out why djb's tools weren't first class citizens and default.