Jonathan "Keith" McHenry once cornered me in San Francisco, you see as a bicycle messenger we carried the same kind of radios cops did ( circa 89/90 ) for no reason at all he started calling me "pig" & a bunch of other epithets,(thinking I was LE!) the guy is always spoiling for a fight, I am willing to bet a respectable group that did everything above board could feed the homeless every day of the week.
I once had a girl friend in "food not bombs" ( I used to be a punk rocker ) & first hand saw the facilities they were using at the time to feed people, they were not professional at all, no idea about hygiene WRT feeding large groups, & would "dumpsterdive" food too.
So, while it makes great press ( oh those repressive cops/gov't!!11 ) the facts are clear, they like to make trouble and they might accidentally poison somebody