This is in fact a really interesting topic and I remember wondering all kinds of stuff when I two years ago discovered these forums, for some reason I hadn't posted much about that back then.
Clam's tricks and glitches topics of course blew my mind about my all time favourite video game, I hadn't even a clue about such thing as climber-stuck-in-a-ceiling, for example. The biggest mind-blow experience was when I saw giant's leap glitch in a challenge solution replay for Tricky 28 - "Lost something?".
I also had my mind blown when I read
this post. I never thought that no Bubble level in ONML had steel blocks, I was really amazed.
Today I learned something new again...
this.