[sm0ke]

The thing about this is that it's not feasible, every guild will have a bank in their GH, the weight doesn't matter, I have no property in my guildhouse, the only things you could feasibly take are runebooks, and those are locked down too.

It's not that the idea doesn't have merit, it's that it's execution is flawed, the bank makes your idea completely moot.

I agree somewhat, for some people it will be useless but not for everyone, Miners and BlackSmithing weigh a lot scrolls and pots as well if their in bulk because eventually their bank would be to full to contain anymore and would be obliged to put it in their homes. (Crafters in general will eventually run out of room even taming mounts they weigh a lot.)