Thanks for the feedback and thoughts so far.
The Refer-A-Friend system is intended as an option for players who want to invite a friend to play WoW with them and experience the game together. When it was first introduced, we gave it a hefty bonus to experience gain as a way for both players to reach endgame content as quickly as possible.
Nowadays, purchasing the latest WoW expansion includes a free character boost, so the need to rush your friend to max level is no longer there; you can jump into the latest content with your friend right away. This meant that the only players who were using the Refer-A-Friend system in its intended way – leveling alongside their friend – were those who had decided that they wanted to experience that content together. We realized that, for those players, the 300% XP bonus was a disservice; we were cutting that shared experience short by making them finish it far too quickly.
Now, we certainly recognize that the majority of people using the Refer-A-Friend system before these changes were doing so in order to level alts quickly. If anything, we take that as a strong indication that the system needed to change: the best method to level a character in WoW shouldn’t be “buy a new copy of the game, put it on a separate account, send it a Refer-A-Friend invite, level a new character, and then transfer that character to your primary account when you’re finished.” That’s messy, at best.
That said, we’re certainly taking the feedback about the rate of leveling alts into account as we move forward with the game’s development. We’ve been happy with the changes so far, but if leveling is too slow, we’d rather address that in the game itself than have Refer-A-Friend be some kind of bizarre workaround to an outstanding issue.