Cause there's only a few of us who regularly answer them and we have lives that don't allow us to spend all of our time on the forums answering your questions. Most questions do get answered within a day or two. It's not like we get paid or anything.

All of the questions that I answered for you here today (with the exception of #3 & #4) have been answered before in other threads in the KDE forum. If you are in such a big hurry - you could try searching the forums - to be perfectly honest that's exactly what I did to answer your questions. I searched and then copied and pasted the answers here in the this thread.