1) My theory is that she competes in the 1500 m to get beaten, so that her 800 m victory wont raise as many eyebrows ... at least thats what i hope. On the other hand she might think "IAAF will soon force me to take my pills again, so i will try to win as much as possible as long as i still can".
2) You should keep in mind that she was probably in a much better shape when she ran 4:01, i think she ran about 50.5 around the same time, this season she only did something like 51.5. I also dont think that its a coincidence that (almost) all the high-testosterone female runners in history specialized on the 800 m, in other events its probably harder for them to do well.
3) I dont really have any hate for her, although it irritates me that she apparently decided to piss off twice as many people by doing that double. You would hope that she was more "humble", understanding her position and that of all her competitors. Its up to IAAF to provide a level playing field for all the athletes, its not Semenyas fault that they dont do their job. All her competitors shouldnt aim their hate at her, this doesnt help anyone. I hope that some of them "grow some balls" and protest the race, by either not competing at all or by just standing still and letting Semenya run her own race, as soon as she finished the race, all the girls can battle it out. Everyone wants more fairness, but no one really wants to fight for it/give up something for it.
4) Its funny that almost all the 1500 m greats (Hassan, Muir, probably Dibaba) are also entered in the 5000 m, apparently they try to run from Semenya, sadly the best 800 m runners cant do the same, because none of them would have a shot at the 400 m. I think Kipyegon is the only one of the medal favorites who will only do the 1500, so she should be interested in running Semenya out of her shoes, which is probably good news for someone like Muir, because Kipyegon probably wont be able to sit and kick like she did in Rio. I think womens 1500 will be extremely fast, even if Semenya wont compete, Muir basically announced that she will go for a much faster pace, not allowing something like in Rio to happen again. I think there are currently at least 5 girls capable of sub 3:58, so this could really be good ...