For some unknown reason my Mac deletes permanently when I hit ⌘+⌫. Normally ⌘+⌫ is to move to Trash and ⌥+⌘+⌫ is the one to delete for good. Can't figure out how to make it work 'normal' again?
Probably your trash folder is broken. There are a lot of solutions of this problem in the internet, but in short you may need to remove your trash folder
sudo rm -rf ~/.Trash and let Finder create a new one by restarting your Mac.