AFnord: The main issue I have with the weight and naming problems is that I don't really see a reason for it to begin with. Renaming swords just causes confusion, and considering how many seem to get their information about these things from pen & paper RPGs, a shockingly large portion of the self proclaimed "history geeks" that I've met think a longsword is a 1-handed weapon. As far as weight goes, they could simply have renamed it, call it "encumbrance" or something, and then they can give it a value that reflects both its weight, and how awkward it is to carry around (and it could also be used as a balancing factor).
Well, since you brought up pen & paper RPGs, I feel the need to point out that "weight"
is a rename, and the original term
was encumbrance. I'm not sure when the term that makes sense (encumbrance) was turned into the term that doesn't make sense (weight), but it probably has to do with the way certain pen and paper RPG rules were applied. Early games started trying to do one thing, came to be seen as representing another, simpler thing, and forty years of later here we are trying to jam a square peg into a round hole.