The friend request thing is new for me. It happened a few times this week but wasn't a problem until it came out in patch. I denied and blocked them, the problem went away as fast as it showed up.
Like most everyone else it's the pink walls of spam from tells that is most intrusive and the main problem is I don't have an ability to manage my block list aside from one at a time. Having to manually remove deleted characters? That's just bullshit. I shouldn't even need to do that.
There should be a report/ block action that wipes the chat, blocks the spammer and doesn't add them to the 200 list. I don't mind blocking them but I really don't want to manage the block list every 6 weeks in the tedious manual way we are made to do it.
I've said it before. If these scrubs want to pay SE $12 a month to barf spam, I don't mind blocking them.