I too have a serious problem with this that I posted about as the last post here:  https://bitcointalk.org/index.php?topic=325980.0

Furthermore, not only did they charge this fee, but instead of charging me $50 they charged me 4BTC. I contacted support and they gave me  the "we are not a bank explanation" but totally failed to respond about the huge over charge.

What can we do about this?  Can anyone confirm that this inactivity fee was in the TOS since the beginning?

My biggest complaint is that I think they willfully decided against emailing out with this announcement.  I have received other announcements by email from them and there is a setting in the account prefs that defaults to "Include my address when sending bulletins"