I disagree. I got pinch in a map and was not on set easy 0
Now everyone has told you the answer to your post.
Now if ladder Reset happens, it is defaulted to /set easy 1 on your first climb with that character.... NOTE, I stated with that character, once you complete your first master quest, the default is turned off, HOWEVER, if you play a different character that has not completed a Master Quest, the default still applies ... this also applies if you reset your character without completing your first Master Quest.
Hence the reason to use /set easy 0 (disable) with your first character run after a Ladder Reset happens.