Well you are using a program in a totally different way then its main focus. If you don’t find something useful do you want Apple to take it out? But if you took a little time with the manual you would find the answers to your question.
1) Right click on the description header, choose what you want to be displayed (in this case KIND) uncheck what you don’t want.
2) Change the view type to the first button (upper right) List view, no album art.
3) Unchecking the box and that song will not play if you use iTunes as a player
4) If you don’t turn it on it is not doing anything.