Preliminary patch notes are up

[Khalithar]

[2.0] In an effort to curb RMT activities, the number of friend requests players can send per day (Earth time) will be limited to 5.
* The friend request counter will be reset daily at midnight (Earth time).

Hopefully this will make them less annoying for the friend request anyway.

RMT can make an infinite number of characters, so unless it's 5 invite account wide, this is a pretty bad fix. It should have been gated behind leveling the character past a certain point or setting friend list only tells.