I've contacted Twitter via their "Suspended account" form: https://support.twitter.com/forms/general?subtopic=suspended

  Hi Twitter. I agree with you that tweeting another person's
  private, confidential > information warrants some sort of
  action on your part (not the least of which would be
  removing said tweet). You have chosen to suspend accounts
  for this. That's fine too.
  
  However, I believe your policy should apply to everyone
  equally. Most notably, Spike Lee's twitter account is still
  active. If you recall: he retweeted a tweet that he believed
  contained George Zimmerman's address: 
    http://news.yahoo.com/blogs/cutline/spike-lee-apologizes-george-zimmerman-address-tweet-015514123.html .
  Regardless of one's opinions on the Zimmerman/Martin case,
  this is in direct violation of Twitter's ToS and warrants
  immediate account suspension for the original tweeter and
  Spike Lee (and anyone else who touched that tweet).
  
  I know you will do the right thing.

EDIT: I received this automated message from Twitter:

  Hello, 

  If you're writing in about <me> being suspended, this
  account is not currently suspended; please review any
  previous communications from Twitter for clarification
  about what the reason for the suspension may have been.
  
  If you are writing in about an account other than <me>
  being suspended, please refile the ticket from the
  suspended account. 
  
  If you are writing in about an issue other than your
  account being suspended -- including if you believe your
  account to have been deactivated or compromised -- please
  refile a ticket via the appropriate form; you'll find the
  forms at https://support.twitter.com/forms. 
  
  Thanks, 
  Twitter Trust & Safety

I have refiled using the "Tweets/messages" form: https://support.twitter.com/forms/general?subtopic=web_tweet...

EDIT 2: I received another automated message, this time with a bunch of ideas on how I can troubleshoot my problem, heh. This message, however, included reference to a support ticket number and this:

  If the above links help resolve your issue, no need to
  reply. Otherwise, let us know where you are still stuck.

Well, it didn't resolve my issue. So I responded:

  Hi, I believe this automated response does not address my
  concern. My concern is about an inconsistent application
  of penalties for violating the Twitter ToS. It would be
  great if I could get a real person to look at this. My
  original message is as follows:

(With my original message included)