The RMT spammers have started bombarding me with friend requests as soon as I set foot in a city now, which is worse because they're even more annoying to block. Reporting spammers is far too much effort for the vast majority of people to bother with (for the love of God, give me a rightclick->report spam function). And blacklisting people isn't even worth the effort as you rarely get more than a couple from the same person.