This post will be dedicated to the Hello street cat app. It's an app where you can donate food to homeless cats, after donation the machine will give food to the cat and then you can watch it eat (I think many people have seen memes/funny videos where cats react funny to a machine pouring food into their plate).

Sounds good, but there are animal killers who for a fee (~$500 per kill and another +$100 if they leave the corpse right outside the house where the food machine is) are willing to kill these cats alive.
They find homes for stray cats and then lure them out and kill them on video in brutal ways, for which they get paid. Sadly, eight famous cats have died at the hands of animal killers: one was burned and placed next to a house, and the others were beaten. Abusers can also put poison in food or simply flood all the food... The cats named Mr. Fresh and Mr. Sneak were sheltered by kind people, so they are safe. However, other stray cats are still in danger.

We know several people who do this sort of thing (several members and two administrators of a Telegram channel where they discuss ways to kill cats, their photos can be seen in the screenshots attached to this post).
https://imgur.com/a/QQlge5r - Screenshots