I've spent some time turning this dataset into a Torrent - magnet link is here. If the Reddit OP doesn't want it to be shared in this way for whatever reason, I will of course kill it. Just trying to save him some bandwidth.
magnet:?xt=urn:btih:9941b4485203c7838c3e688189dc069b7af59f2e&dn=RS%5Ffull%5Fcorpus.bz2&tr=udp%3A%2F%2Ftracker.openbittorrent.com%3A80