Explanations needed!

Can someone please explain for me the following:

1.  Why Bored to Death was cancelled, and Enlightened was renewed?  I get that all of the characters arced and all, but still, with only 8 episode seasons, they could’ve muddled through some more zany capers.  Maybe find Jonathan a true love interest?  This cancellation bums me the hell out.  And Enlightened is just awful. 

2.  The entire Justin Beiber phenomenon.  I just don’t get it.  At all.  Even my 8 year old thinks he’s creepy, and isn’t that the target demo?

Thanks!