There are many ways to help the KDE community, not only through programming. There are other areas of contribution that need talent of other kinds. All that's necessary is the desire to help and some commitment. Of course, if you want learn how to program in order contribute, we will be more than willing to get you started as well.
Some other ways to help include
Q: When I log in to KDE, some programs are/are not started and I want to change this. How can I do this?
A: See Autostart
Q: When I take a break, I just want to hit the Break key and the desktop should be locked. How can I achieve this?
A: Open a console, enter
systemsettingsSelect . Click on the Shortcut, type the key you want to associate (Break in this example). Click on Action. As Command/URL enter
/usr/lib64/kde4/libexec/kscreenlocker_greetThen click on Apply.
General configuration of your workspace
Plasma K~Runner FAQs, hints and tips
Configuration hints and tips for various browsers