I think this is good stuff for all of us to keep in mind, because you just never know. I'm FIREd and have a working spouse, so I feel pretty secure, but I know that even in my case, it's still possible for the rug to be pulled out from under us.
If you haven't already, maybe consider sharing cheap recipes/food ideas, since that tends to be a big expense for people, after housing. How to turn a couple of bags of dry beans and rice into not only something edible, but delicious, how to avoid waste, what to do with leftovers, other cheap meal ideas (I realize beans and rice are almost a stereotype and definitely not the only option), etc.
Also maybe some thoughts on food for pets so the furry friends don't suffer. Maybe gradually switching to a cheaper food now so it's not an overnight change that could be upsetting to some, then gradually switching back when the crisis is over. Talk to the vet about what cheaper food might be appropriate temporarily, etc.
Since the holidays are coming up, some conversations with friends/family about gift expectations might be in order, too. I think for the general public, just having someone (you) tell them that it's okay to cut back on gifts or forego them altogether in tough times would go a long way toward feeling like they can do that without being the family Grinch. Or maybe discuss cheaper/homemade gift ideas -- plenty of threads here on that!