I just started to think about this, but here are a few.
Reader,
“MC is overpowered!”
—> Proceeds to get the crap beaten outta them the next chapter.
Reader,
“MC still won!”
Me:
—> Reflects to Chapters 2, 3, 4, 5.
Reader,
“Why don’t they just power up?!”
Me: :blob_facepalm:
—>...