The latest release of necrobot (0.8.6) is still working. Does that mean they haven't given up yet?
And i don't get one thing. How could some bot devs receive a sue letter but not Necrobot? I mean it is the most used bot. Maybe Niantic reached them and they made a deal? What do you think.
Also which bots are Niantic talking about that got sue papers? Which bots decided to close their service apart from necrobot?