These are the things that, if we had the coding know-how and drive to fix up IVAN to our whims, would be in IVAN.
I'll start with a simple wish: A way to break down enchanted weapons/armor for enchant scrolls. This would make +5 balsa spears worth carrying around for more than just the gold and novelty value.
Bones are made for any characters that die in dungeon levels (UT and GC; only exception I know of is UT1). If you die in New Attnam, Attnam, or the world map, no bones file is made.
Ideally, the only way they'd know *you* were the thief was if they caught you wearing something that was stolen after the invisible thief escaped the town (and/or, of course, if they knew you had items that granted invisibility and noticed enough disappearances of you and items). Unfortunately that's very likely a difficult thing to code.
Walk to the square you wish to trap, then (a)pply them. Be aware that you might accidentally trip your own trap before you can move away if your DEX/AGI is too low.
Why use a cheat engine to memory hax when you can just press X? I mean, aside from the obvious part where you can still get a highscore while cheating. Also, bananas in the New Attnam store seem to go bad much faster than bananas found in the dungeon, and it's also easier to get satiated off of enemy corpses, so it's not worth the effort in my book...
The log bit that lets you know you have leprosy is quite vague, and sometimes only shows up just before a limb pops off. Generally, though, if a limb pops off for no other obvious reason leprosy is the cause.