This would be huge, one of the biggest draws to Plex for me is being able to use a single account to watch content across all my friends servers from any Plex UI (be it the hosted one at app.plex.tv or the copy hosted with each Plex server)

A dht crawler is inherently an intensive service to run, magnetico used sqlite and would take 10 minutes just to load the splash page that includes the total count of discovered torrents.