This makes possible:Inviting bots to party (or using the Dungeon Finder) and playing dungeon, raid or doing some PvPSummoning your alts as bots to quick item exchange, casting some spells, buffing, leveling, crafting, etc.Random PVP with bots of opposite faction or dueling with bots from your factionTrading and auctioningMaking World of Warcraft even a completely single-player game!
Single Player Project Wotlk