The factions separated the game, but there wasn't really a deep hatred between the players.
At the very most, they would refer to each other as Alliance dogs or Horde pigs, but other than that, players from different factions would eat and drink together without any problems.
There was even a family that had members in both the Alliance and the Horde.
There were many Horde players who liked Tyrande, and there were many Alliance players who admired Queen Sylvanas.
"Saar was actually a slave and his real name was Go'el. He inherited the Blood Chief status within the Frostwolf Clan. His father Durotan and his mother Draka were both witnesses of the dark period when the old Horde rose. However, because of their open opposition to Gul'dan, their tribe was ousted. Both Durotan and Draka were also tragically assassinated by an assassin sent by Gul'dan…" Remulos explained.
"You're not asking me to assassinate Saar, are you?" Lu Li asked as he felt his stomach cramp up.