Your response reflectsthe philosophy of different distros. Fedora has the
burning desire to be bleeding edge so it has many updates and it has the backing
of a major developer, RedHat, so it can be as aggressive and ambitious as it
likes. On the other end, PCLOS is a small distro, the brainchild of one
developer, and it moves more slowly.
Other distros have their own philosophies and move at a differeant pace. Debian
uses rolling releases which means constant development and no need to upgrade to
a new version as it is a gradual process. You hardly notice the change when all
of a sudden you are in a new version.
Ubuntu follows a cycle with new releases every six months. This is ambitious and
some people criticize them for being too ambitious, but nobody is forced to
upgrade. It is simply a matter of choice. Meaning that you can be bleeding edge
or not as you choose. Ubuntu's weakness is in my opinion is the desire to be all
things to all people and this is reflected in their motto and philosophy, but
you can't please everybody and in trying you sometimes lose users and risk
becoming bland. However, so far, they have made an admirable effort which is why
it has been the most successful distro so far.