Elhazzared, dude, it seems you've been into this game for a time now. surely you understand there's more to it than collecting loot and selling it to merchants for shiny coins.
Perhaps to you this isn't an important part of the game and as I said rpeviously, this will just make players not want to go explore and do side quests. Basicly, they will ignore a large part of the game because what is the point? You can't sell it anyway!
I have no doubts some player are that obsessed with looting, but they aren't in the majority. But "the most important thing in an RPG"? Really? What about such things as lore, quest lines, character development, NPC interactions, puzzles, enemy encounters?
If I wanted to play a game with a heavy focus on buying & selling, I'd rather play Monopoly with friends.
Personally, I can say I am a pack rat too. Yes, I took every single item I could in the office of Sellus Gravius in Seyda Neen, Morrowind (I actually made a point of collecting entire armor sets and displaying them in mod houses. Also, complete sets of weapons in specific materials, and crockery). Yes, I robbed the people of Neverwinter blind. Those golden pantaloons in Baldur's Gate 1? I held onto them until Throne of Bhaal (expansion to BG2), despite not knowing what use they were to me (and oh my god, was it worth it in the end!). I am currently busy finding every single rag in the Hive in Sigil (PS:T). No piece of cheese, no wooden fork is safe from me in Skyrim. Arcanum was fun too, though I don't exactly remember how I handled the inventory in there.
But at the end of the day, I can live with leaving stuff behind when I realise "Meh, it's not really that important" - the plot is important, and at the end I am swimming in gold anyway, even in the Underrail. I still take everything with me, even if I have to go multiple times, and contrary to what some here say, I still explore - a lot. I am a completionist, and a hurdle to packratting is not going to stop me from finding everything in here (after playing Morrowind for 1 week, I knew more about the game, setting and community than the friend who had recommended it to me. And he had been playing it for 2 years.) It is fun in a way, and I get to memorise the paths way better by going along them several times.
The only system that ever really annoyed me was the one in Neverwinter Nights, where you had a combination of weight (which was okay) and Tetris. You had different sized items, which had to fit into luggage tabs of a specific size. This could get annoying, as when you have lots of stuff, you might find a large sized item (3x2 squares), and while you have lots of space (20 squares), they could be scattered all across your inventory due to bad automatic Tetrissing (it filled the tabs from bottom left to top right, going horizontally) when picking up stuff. It was unnecessary, and weight alone would have been enough. Underrail is pretty chill compared to that. But I still continued and finished NWN, and am still a big fan of all those mods.
So, Ehazzared while I can understand you on one hand, I at the same time have to pity you a bit, as you seem too focussed on this mechanic and making money. But to each their own.
By the way, I think using stashes (something that was not always an option in those older games I mentioned) is a good way of making me reconsider what I really need - that way I also know what I can safely sell off, and specialise my character (something I am notoriously bad at, sometimes. I always play a rogue, for example, because I have to open those doooooors!) concerning their fighting style.
When I saw Al Fabet? I laughed, because I recognised my habits in him too.