There are several items laying here...
We can walk over a crap ton of stuff. Here's an idea about that...
I noticed something. We can walk over an entire armory of stuff (say, we clear out a vault of monsters without ever having to advance), but we can walk over all of this stuff like nothing is even there! While that is incredibly convenient, I think that it should be possible to add just a tiny bit of realism to ADOM with this little feature:
Walking over a pile of stuff incurs a movement speed penalty.
This would give the sense that the PC is trying to also climb over a little mound of goodies. The larger the pile (by stone weight), the more difficult it is to move onto it. However, I have other feature ideas for this same event. you also take a mild DV boost, representing that you are on a mountain of things that the enemy would have to climb up to get to you for. The bigger the pile, the larger the boost. should be noted that both the boost and penalty wouldn't really affect the players too much. I don't pretend to know all the mechanics on this, though. just thought I'd shoot this suggestion at the powers that be.