Ok I created the glitches/mistakes page and it is up here: http://www.grim-fandango.com/mistakes.php
. It includes all of the ones listed here and some ones I found on Grim Fandango Central. Some mentioned here were original (I haven't seen them anywhere else before) but others have been listed on sites for a long time, so if your name is not listed by a glitch which you posted here that is likely to be the reason.
Well, it's not really a glitch, but it is a hidden thing.
Yeah, there's a difference between mistakes and easter eggs
. Glitches and mistakes are obviously not noticed by the game's creaters, but easter eggs (such as Manny smoking after a period of inactivity) are obviously intentional. Easter eggs are fine to post too though because I can add them to the easter eggs section of the DOD