> This is what killed Usenet,[1] which 40 years ago offered much of the virtues of Reddit in decentralized form. The network's design has several flaws, most importantly no way for any central authority to completely delete posts (admins in moderated groups can only approve posts), since back in the late 1970s Usenet's designers expected that everyone with the werewithal to participate online would meet a minimum standard of behavior. Usenet has always had a spam problem, but as usage of the network declined as the rest of the Internet grew, spam's relative proportion of the overall traffic grew.

Should have been forked into a version with only *.edu allowed.