Or you know given his mastery over memory and the mind he could just mind wipe him and/or alter his brain so that he is no longer insane. He might be able to do something similar for Brunscar and Riley given all of them are really only apart of the S9 due to their mental problems.
It would also be cool to see both mannequin and bonesaw as apart of the Celestial forge.
See, I think that would be cool, but Joe seems to be taking a hardline stance as of the moment.
Random Thought; Generator Rex Nanites are all about countering mutations. If Joe didn't want to murk Crawler he could easily turn him back into a regular human.
However I think that Joe will probably keep 1 of them alive purely for experimental reasons so that he can thoroughly test the Gemma and Pollentia. Stuff he couldn't do with Aisha and the undersides.
Speaking of what if Joe augmented the Gemma and Pollentia? Would it improve the powers in any way? Would it just make it easier to use or could it improve the strength? Could it cause the connected shard to "mind meld" with the parahuman like Khepri and QA in a controlled manner?
I hope that Joe keeps some if not all of the S9 alive so he can study, reproduce, adapt and improve upon their powers. Like with Jack Slash and bonesaw Joe should theoretically be able to access their shards and study them so that he can connect to other shard like Jack Slash and have the understanding of biology and probably some peeks into how shards function that bonesaw has.
The thing is, the Corona Gemma/Pollentia aren't actually that useful to Joe? Like, back when he first met Aisha, had he wanted to he could have done some brain surgery and made Ren part of her very brain. He just didn't want to do that, for obvious reasons.
They're literally just specialized tissue that the Shards use to read the brains of their hosts; As we know from Bonesaw's experiments, removing them doesn't actually do much for you, it just makes controlling powers way harder. Bonesaw would love it if she could extract agents and use them for all sorts of wonderful biohorror, but that cannot be done. If Joe wants to remove a parahuman's power, he'd have to make a billion tiny alterations to their genetics that probably cancel out on the macro, but make them unidentifiable to their shards.
Also while he could definitely improve the fine-control a Parahuman has over their power by improving their Pollentia actual communication would probably take a bit of modification on the Shards end of things.
Given that Amy just seemed to alter Taylor's brain, I don't actually think that's true.
The way I see it, the main problem with Shard communication is that Shards think in very alien ways; Taylor couldn't understand human speech, which if you know anything about the human brain demonstrates how much her brain had been warped.
Joe would have to do more than alter the Corona Gemma/Pollentia, he'd have to install some sort of translator of some sort.
Obligatory "For Joe killing parahumans amounts to putting them into timeout corner"
It would probably be safer and more considerate for him to put them into storage or stasis or some effect to that effect then to leave them in their Shards and whatnot.
Wasn't it confirmed that Joe's gonna Soul Jar the S9 to ensure they can't be brought back via shard network shenanigans, no matter what?
I don't know about wearing stuff over a kamui but the point of the exposed skin is to mitigate the two main drawbacks of life fibers: control and absorption.
Life fibers are parasitic hyper-predators, they consume blood and neural energy to sustain themselves and their population, the more area they cover the higher the burden on the body to maintain a Kamui, and eventually they become strong enough to take complete control away from the host gaining autonomy.
Joe is powerful enough that he really shouldn't have a skimpy Kamui, the burden on his body, even for a divinely crafted and enhanced one, should be negligible, and Tetra is way more in control of herself than Senketsu ever was, such that that increased level of control would be beneficial as it would allow Tetra to use her awareness to dodge attacks.
I'm not sure that's really accurate? It wasn't too long ago that Tetra had to be wearing The Avid Glove nearly all the time because she was constantly low on energy due to how she developed.
Also, Joe's outfit isn't crazy skimpy, he's just shirtless and not even entirely. I think there could've been more coverage had Joe not just upgraded Tetra to the degree he had, but given the current balance between their metaphysical strengths, I think the current skin coverage makes sense.