I never have a problem with people flying or showing the flag respectfully. I may give them some pointers if they are in violation of the US Flag Code but I applaud anyone who respects the flag.

(a) The flag should never be displayed with the union down, except as a signal of dire distress in instances of extreme danger to life or property.
(b) The flag should never touch anything beneath it, such as the ground, the floor, water, or merchandise.
(d) The flag should never be used as wearing apparel, bedding, or drapery. It should never be festooned, drawn back, nor up, in folds, but always allowed to fall free. Bunting of blue, white, and red, always arranged with the blue above, the white in the middle, and the red below, should be used for covering a speaker's desk, draping the front of the platform, and for decoration in general
(j) No part of the flag should ever be used as a costume or athletic uniform. However, a flag patch may be affixed to the uniform of military personnel, firemen, policemen, and members of patriotic organizations. The flag represents a living country and is itself considered a living thing. Therefore, the lapel flag pin being a replica, should be worn on the left lapel near the heart.