Because Congress is gearing up to try to pass a flag-burning amendment and because, frankly, I'm tired of all the 'patriotic fervor' resulting in mistreatment of the flag.

Flag Code

Sections most often violated/ignored (in my opinion):

Sec. 6. c. The flag should not be displayed on days when the weather is inclement, except when an all-weather flag is displayed.
Sec. 8. g. The flag should never have placed upon it, nor on any part of it, nor attached to it any mark, insignia, letter, word, figure, design, picture, or drawing of any nature.
Sec. 8. k. The flag, when it is in such condition that it is no longer a fitting emblem for display, should be destroyed in a dignified way, preferably by burning