in simple terms dht is open network anything downloaded or uploaded to dht wont be counted on site so better turn your dht off so your stats gets correctly updated on the site.

second this fake means. this user is using some fake patch for utorrent
this patch lets you use any torrent client which may be banned but to tracker it shows its using utorrent1.7.5

instead of this nothing else is wrong.
he will upload and download just like you.

nothing wrong on your part just wrong on this users part

he is banned now.