So I kind of screwed up my initial post. I can't find when the Korean drop rate adjustment put on Sakray on July 28th 2010 was moved to main servers (so it's possible it never happened). What we do know from testing is that they greatly increased the range of monsters you can kill before observing a drop penalty.
Same Level: No change
+/- 30 levels: Small Penalty (estimated 80%~90%)
+/- 60 levels: Large Penalty (about 50%)
I imagine there's some gradient between the 30 level and 60 level penalty, something like 90%/80%/70%/50% for 30/40/50/60 level difference.
That first one looks fine. 2nd one is pretty horrible.
The main difference as others have pointed out is that in these other MMO's that do have drop penalties (most scale to zero) there is absolutely NO benefit to the higher level char getting the items in the first place.
In those games the drop penalty is actually a POSITIVE HELPFUL thing since it stops players wasting time hunting stuff that wont benefit them in the slightest, and herds them towards the monsters that will drop them useful gears/loot.
If RO were to have drop penalties, ALL the equipment would need to be releveled in terms of what drops it, and what level reqs it has. lvl 145+ monsters (or mvps) would need to drop the best armor/weapons/acc's etc.
Items for quests would either need to drop pretty much everywhere, or the quests would ask for items based on your current level range.
Edited by Hrothmund, 15 September 2010 - 02:30 PM.