I semi-routinely get food for beggars. Gift cards, even. I don’t carry cash, but if someone says they’re trying to get enough money for food, I offer to just buy them what they need. They almost always say yes, and, especially in winter, you can tell it means a lot, at least in the moment.
On my first payday, post graduation, I did this for some kid who seemed clean by really skinny. He picked out frozen chicken nuggets, and seemed just so happy and grateful. That’s stuck with me.
Hashtags still only show you posts that are specifically addressed to users on your host site. They just act as a quick-search feature. You need some kind of “actor” to re-address things to people who aren’t following the OP in order to get true propagation across the network. This is what guppe groups do, and what Lemmy communities do.