A while back, say over a year we had a legal entity running around suing bloggers over copyrights..
At that time I said..
"But before you claim ownership one better make sure it's both theirs and unencumbered. I propose titles for copyright, if you claim copyright you have to prove you are the title holder if there is any dispute."
Guess what.. they lied. Seem they didn't own it and may not have been an actual authorized litigant.
Thank you EFF for that one.