What Duke said.
Hobos aren't exempt the way miners are because they're a fundamentally different job role with more freedoms afforded to them than miners.
We don't have a hobo killing issue the same way we have people who legitimately come on to RDM AFK miners. That rule was also mostly put in place because miners have somewhat valuable rippable items in their possession when they're mining. Hobos don't. They can dumpster dive without fear of losing anything if they die.