These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: System Restore
Broken Base: Was Sonia portrayed in-character just before her death? Opinions differ. The author went back and revised the relevant chapters in order to address this: while originally she fully assumed a Queenly Mask and showed No Sympathy to Kuzuryuu, the rewrite has her still smiling and trying to comfort the others and being far more sympathetic towards Kuzuryuu and Pekoyama. More emphasis is placed on the idea that she felt she had no choice, whereas the original version had her declare she consciously made the decision to kill Pekoyama and still regarded it as the best choice.
Apparently, Chapter 3, Part 5, in which, among other things, Souda gets the despair fever and wears Sonia's clothing, was controversial enough for the author to remove and rework it.
Well now it is thankfully averted but the original versions of part 5 of chapter 3 had shades of this since both of Saionji's favorite victims, Mikan and Souda, were murdered at once making all of her past actions towards them much worse. Souda's death in particular had the extra issues of being explicitly labeled as a Sacrificial Lamb doomed to suffer an early death by his Japanese character profile (as a meta-joke in Dangan Ronpa 2) and Saionji in both the game and the fic itself (“You’re just a side character. You’ve lived too long anyway."), which made it being his actual fate here seem much less "funny" in addition to being killed in a manner much to similar to how Ishimaru died in the first game.
In this line, Mahiru advises Akane against entering an eating competition, when she had done so in this fic.
On a darker note, this throwaway line from the English localization comes off as quite the Under Statement when you recall that Sonia is the second killer in the fic. The author lampshades this by remarking "trouble huh sonia".