It's a dynamic IP - it's associated with 3 or 4 other IP's being created by the same person. That person is involved in a law suit with some named Wikipedians and that IP has been posting content on Wikipedia under those 3-4 accounts attacking those people (I am not one of those people in the lawsuit, just associated with the people in it). I'm not going to change the block. The IP person is savvy enough to create 10 more IP's if they want.