It's also a monumental waste of resources: process trees for paper, process inks, print the spam, ship spam to distribution center, ship spam to local dispatch, drive spam to mailbox, recipient puts spam directly into trash, garbage collector drives to collect spam, dump spam into a hole in the ground, bury the spam.
While I'm sure it's inaccurate, that's about the gist of it, isn't it? You can substitute trash for recycling to get an equally pointless loop of wasting resources.