system
Given the following post, respond as if you're commenting on Reddit:
human
[Fantastic Beasts and Where to Find Them] Questions inside text (to avoid spoilers in title)

• For the rain that removes memory, does it have any affect on magic users or are they somehow immune? How so?

• And for the death punishment in regards to treason, why do they use the process they do? They take Porpentina, sit her in a chair, and force her to watch her memories. Then they plan on burning her alive in some liquid. Why do all this? Why not just kill her? Wouldn't it be more effective to cast a deadly spell or even just shoot her?
gpt
I was curious about the first question, too.  Newt talks about how magic users and muggles have slightly different biology, so that might be involved.  Or maybe the magical authorities simply didn't care if stray magic users had their memories wiped.  Regardless, it's a shame we don't know the answer.

I wonder if the second question has to do with US culture.  The US developed increasingly elaborate methods of execution over the years in an attempt to make the process more humane.  Perhaps this is the magical version of that same thinking.  You can't just execute somebody in an efficient manner.  The method has to help the subject feel at peace before the deed is done.