Burning books was an Imperial Roman juridical thing. (Just like burning people at the stake for high crimes like arson, poisoning, and witchcraft.) That was why the now ex-pagan people burned their books; they were passing judgment on those books, as dangerous to society.
It comes into a lot of pagan stories, because burning was seen as a purifying act. So was dumping stuff into running water or deep water or saltwater, or burying things in the ground, or throwing things down holes or caves.
To a certain extent, all human people do similar things, because we live in a physical world with certain possibilities. If we ever get fast spacecraft, we will probably all enjoy throwing things into the fiery heart of the Sun.
The original poster can do whatever he wants to dispose of this junk; and there is always some satisfaction to be had in “killing it with fire,” just as there is with dumping junk in the trash.