Liliana Marie Prikler schreef op wo 13-04-2022 om 12:40 [+0200]:
> You are first encoding a non-ASCII byte to ASCII, which has no glyph
> for "I have no idea what this is", so a question mark (#\?) is used. 
> When converting from invalid ASCII to UTF-8 on the other hand, you do
> have #\� as the WTF character, so that is used instead.  This is
> entirely consistent :)

Right, makes sense.