Not sure if this has happened to anybody else, but it seems some RMT are up to new tricks.
Before, they'd just send you a /tell and that's it.
But I've started getting a /tell and then immediately thereafter, the same guy will send me a Friend Request.
Because he sent me a Friend Request, the game will NOT let me blacklist him. So I click on the friend request notification, and I click "No", then try to blacklist him again. Still won't let me. So I open my friend list, and... even though I said no, it still added him to my friendlist!
So, I must now delete him from my friendlist manually (even though I said no), and THEN I can blacklist him. Freaking Annoying as crap.
Hopefully SE will patch this out ASAP to allow us to blacklist someone (which also auto-declines their friend request AND removes them from the friend list). Just wanted to give some heads up.