Slobs will always be slobs. It may be a matter of poor education, low self-esteem, or despair. These are desperate times, and many just do not have the education, life skills, or social training to cope.
The OP's encounter may have been with someone who just smelled more rank than usual. I wonder about their partners (if they have one). Even our cats would leave home if we didn't shower at least once every day...
One of our neighbors showers once a week. He told us this recently at the pub, in a tone and with a face as if he is proud of it. He smells like he sleeps in a horse manure pile. He also looks like a horse, but we were all too polite to say this. No need to put up with him now, as here in Victoria (Australia) all our pubs closed at noon today. The local alcoholics will be rioting in the streets. Lots of those here, mostly middle class, quiet, usually well-behaved home drinkers, fortunately, so we may be spared a mass movement (liver if not bowels) in the next few days. We lie in hope, but the baseball bats are stacked next to the front door, just in case.
Yes, this is a photo site, we all know that!! Lighten up, gophers... Go to the kitchen and count the cutlery, wipe down the leaves on the windowsill plants, wash the windows (again), dust your bookshelves, brush the cat/dog, disinfect your keyboard, trim your fingernails. Scoop the litter tray often.
Remember to wash our hands often and wipe our bottoms well after, well, you know. Numbers One and Two. And chill.
Let's all disinfectct our cameras!! I did. How about you? (My partner has suggested I should boil mine in our stock pot on the stove for ten minutes. No, I didn't.)
A (maybe) useful tip. My GP recommended the following spray for household use as a nifty (and cheap) surface-spray disinfectant. Non-alcohol, but still effective, she said.
In a clean spray bottle, 30 ml of dish detergent, 20 ml of Dettol, 20 ml of eucalyptus or tea tree oil. Cap, shake well. Use. Smells real nice on hands. But don't use on cats or dogs as the oils are somewhat toxic.
My contribution to the global crisis. Others please post accordingly. We are all in this together. A sense of humor helps, as someone named Lord Haw Haw once said on the radio, a long, long time ago. Some things never change.