Pay it. Don't wait.  The longer you wait, the higher the fee.  It has been going like that for a few years now.  The fee will be $25 soon.  This is the way Blockstream wants it.  That way, you'll want to use their network service which will only have a small fee!  lolololol.  Hahahaha.  Get it?!  Adam Back wants to capture all the fee traffic!!!