You can save yourself the trouble of finding out the address of their lawyers by simply putting a Kraft and/or Spongebob logo on your website... They'll come to you quick smart!
It's not that simple. It's not clear that the maze is copyrightable in the first place.
I doubt he has the resources to fight it if they choose to fight. He would basically be hoping they would give him a settlement just to make him go away.
Filing a lawsuit just to get a settlement when you can't actually fight on the merits is not considered positive behavior (although it can be lucrative).
"Filing a lawsuit just to get a settlement when you can't actually fight on the merits is not considered positive behavior (although it can be lucrative)."
If you can't actually fight it on its merits because the facts and law don't back you up, I whole heartedly agree. If you can't actually fight it on its merits only because you don't have the resources to do so, it's more questionable.