s1 - s10: no HIIHidden Immunity Idol
The Hidden Immunity Idol (also known as the "Hidden Idol" or simply as "the idol") is a pocket-sized talisman that prevents the user from being voted out from Tribal Council. Since its introduction in Survivor: Guatemala, critical strategic decisions revolved around the idol, from when to use...survivor.fandom.com
s11: before voting
s12 - s13: after the votes are read out
s14 - present: between voting and being read out
the idol wasn’t perfect to begin with, but they made the changes to perfect it risk and reward.
If I understand this correctly, in season 12 you could play an idol AFTER the votes were read? Wow. Did this ever happen?