the part I've really hated so far is the fact that my private messages were filled to overflowing! Messages from way back when I first joined were miraculously still here!
I had deleted all but the most recent ones so was surprised when I found all those old ones still here.
The part that frustrated me was the fact that if your box is full you can't send or receive any new ones. Uh-oh.
I cleaned those babies outta there quickly!