Ok, my bad. I sure can. What I say is that Arhu, when you first meet him, doesn't look like a shop keeper to me.
And tell me, what is strength weight limit used for ? I am really genuinely curious.
What one learns early on is to hit the trade button on every conversation to take a peek. Mt favorites are bosses. As you talk before the big fight, you have the classic "plans" talk but then click the trade button and... "Hey before we fight? Would you like to trade pins? Sure! Thought you'd never ask." trade items. It's funny you can do it, but also interestingly enough refreshing.
I hit STR based Weight limit (mining is very heavy), works as one would assume. Now if one agrees with item weights that is another thing. To me the weights, carry capacity balanced with convenience and fun seem close enough to right there.
YES when you go over capacity you can no longer run.