Funnily enough, yes, it is very easy to mass remove posts on Reddit with both the api and third party extensions. However, removed is not deleted. Another mod

Funnily enough, yes, it is very easy to mass remove posts on Reddit with both the api and third party extensions. However, removed is not deleted. Another mod can reapprove a removed post and it would be restored. Reddit already has the tools to undo this kind of sabotaging