Stupid question incoming....

So, this is probably a dumb question, seeing as I've been a member here for quite some time, but is there a way to make someone unfollow you?


Do do you have to block them? I think I know how to do that, but any info would be greatly appreciated. 


Also, does BL have any spamming rules in their TOS? Since the reason I'm asking these questions (I've never blocked or had anyone I didn't want following me before) is b/c I just got my first spammy author. 


I quess it was inevitable, but I'd rather hoped it just wouldn't happen here. *sad face*