There are clever mods out there that add weight to gold via scripts, claiming that adding it in the straightforward way cause problems. What are those problems exactly? I don't like the idea of a work around because I want NPC to be affected too. I'm playing with companion and I usually share my heavy stuff with them, and I'd feel tempted to stash all my gold on them.
I added 0,01 weight to all gold entries and just started a new game and so far I don't see anything wrong (except for any amount of gold will show the same 0,01 weight on the tooltip but I don't see that as a major problem as it adds correctly to the total weight anyway).
You know, I don't want to play for a month and then see some big nasty surprise.
Asked this on uesp too but noone has replied yet.