Reasons on Luka and Michelle...I need some more confirmation bias
Lula was almost 1:1 with one of his recent scum games - there he loved exclaiming how so and so were obviously town while he coasted through the thread using his TMI. Pretty much the same here, right down to the reluctance to claim (though he has made sure to give just enough to deter pressure on him for it, which is scum leaning).
Michelle I think has been really lacklustre with her solving - she typically seeks to find townies and uses tone and presentation to scum hunt. It's pretty much lacking, her consideration doesn't appear to be existent and she couldn't provide a basis for her read earlier. All of this comes with the disclaimer that she's likely also busy irl, but I've seen town Michelle, when busy, make herself easier to find as town - this is not up to par for her.