What don't you like about your the Linux flavor your using?

One of the great thing about Linux is the existence of several distributions that users can choose from, though the main flavors fall under Red Hat Enterprise Linux and Debian.
There are certain things that frustrate users about the distributions they are using, for example on my Linux Mint which was developed from Ubuntu and Debian, root login is not enabled by default.

What bothers you most about your distribution? Your response will highly be appreciated.