Pipes and storage tanks and stuff will catch fire and explode
Mods introducing new content into the game.
Things related to oil and other fluids.
Can you add the raise_built =true flag to your create_entity calls please? I'm releasing a fire department mod for 0.17 which is inspired by your mod. (seems like 0.16 won't work because fires can't be accessed like entities there)
klonan?^^ https://mods.factorio.com/mod/fire_department