Nobody, but nobody - - -
dislikes the Forest Service more than I. I won't start. (I've been banned from one board because of my attitude toward those folks. I can get a bit acerbic. Hard to believe.)
And, really, flying flags in those areas ain't necessary. I don't think they banned the US flag, probably banned the used-car banners, and inadvertantly the Stars and Stripes came under the reg. A bit silly, but this may be the most understandable thing they've done in the last 25 years.
Arf