How wars start

This lovely photograph was taken by Mike Flemming 2020 copyright

My street has got a WhatsApp group so that older people and sick people can ask someone to buy them food etc
Last night a man put some photographs of 3 coats belonging to his [ex] partner and asked if anyone would like to buy them.
Another person  got angry and said this group is not for such purposes
Now they have both left the group after a few more exchanges… so even something trivial can blow up into a big problem
I think it waas inappropriate  because if others began selling things it would fill up the messaging and detract from the aid being offered to the vulnerable.
But for both to leave seems sad