Maybe Niantic IS doing something about cheaters?

I agree. But still, fixing is something...
In fact, most mmos can't keep up with hackers finding new ways to cheat, the best they can do is ban them on sight.

LOTS of people use twitter/trackers and these services are run by bots.

If they make IVs (and maybe movesets) unique and random per user (CP and Shinies already work this way and it's accepted by users), I think it will help demotivate a lot of the users of trackers, which in turn will demotivate the developers who will stop at nothing to hack niantics servers. Surely they must have considered this.