Here is my 2 cents,
I think that a 2.5k limit isn't that bad of an idea. When I go havesting, it is only after I harvest or mine for more than an hour that I get over 2k in weight and when hunting it takes me almost 1.5 hours and 3 or more full grab bags to get over 2k weight on me. But this all depends on what you are hunting. For example, praetorians drop full sets of leather or plate armor and this adds up very very fast. So I am fine with having to return at that point if it will solve some problems.
However, I do agree with the idea of reducing the random junk that monsters have on them would be a better solution. I think that would some most of the major problems. If not this, maybe make a new .grab command that only grabs gold, regeants, gems, and magical items. Or even better, have a .options gump where you can choose exactly what you would like to loot. This would greatly reduce the amount of clutter that we collect while hunting.
Dracovich