You can enjoy how cool the franchise is and piss all over Toddster and his retarded teenager vision of what Fallout is, and has become under him, at the same time. One does not cancel out the other.
Another issue is that past a certain point something can be so mindnumbingly stupid that it does indeed effect the enjoyment you get from the medium. The TV show is one such example, there is "turning your brain off" when watching TV and not having a brain to turn off so that the retardation doesn't bother you. You can have fun with Fallout 3 and 4 as well, sure, but the fun ends once you have to force yourself to engage with the main quests or whenever you try and think how any of the worldbuilding works. A game that is just well written from the start doesn't have this issue and still has fun sandbox elements on the side, instead of using them as a crutch.
Bottlecaps make sense for a general currency for anywhere outside of NCR or Legion territory but not within. Hell even new vegas shows us this with crimson caravan keeping track of bottle cap counterfeiting and production. I do agree that bethesda handled them poorly but it isnt a shit idea overall to keep caps around alongside established faction currency.
Are you really going to argue for a currency that is large, unwieldly and has absolutely nothing backing it up? If we're going to just use garbage as currency, why not use, say, pop tabs since they're much easier to carry around? And why did everyone all over post war America decide to use one type of currency if there is no communication between regions nor is there any kind of unification like we've seen in the west with NCR? New Vegas has caps, but I already explained why that is, and the original bottlecaps had a good reason for existing as a currency at the time of Fallout 1. Who was the asshole merchant that first decided he would rather be paid in useless Nuka Cola bottlecaps than with useful barter materials on the East Coast, and how the fuck did that idea spread like wildfire not just across all of DC, not just in Boston but also middle of nowhere like Bar Harbor or Point fucking Lookout? Who were the Water Merchants of Capital Wasteland when there is no functioning economy in the entire region, unless you count one bazaar in Rivet City as a "trading hub"? Makes even less sense in Boston since Diamond City is centered in a stadium, you know that place that has plenty of money at all times because people pay to go there and spend ridiculous amounts of money on food and drink during the game. Zero reason to not just keep using pre-war bills like normal human beings, otherwise why not just use beer bottles and cans as currency since the stadium was also likely full of them?
Past a certain point, there really isn't anything to Bethesda's decisions other than simple memberberries or straight up misunderstanding of the core tenants of the franchise, and this is a perfect example of how thoughtless their entire spin on the IP is: first game had it, why not re-use it?(even tho the second game already mocks people for wanting caps back, let's ignore that entirely because nobody at the office played that far into the game anyways).
"It isn't a shit idea to keep caps around"
I could have just quoted this part and called you an idiot for thinking that carrying around 10,000 or more pieces of jingling pieces of metal, which is not an insignificant amount of weight when added all together, is in any way shape or form a reliable way to handle commerce. Before you ask, yes this is not a random number as some New Vegas shop items go up to 10K, if we count Fallout 4 some legendary armor pieces are worth 30K or more. One NPC in New Vegas even mocks the player bothering to haul all these bottlecaps with them wherever they go just like another NPC calls people who still eat 200 year old food retarded savages, and yet both of these things are just normal, everyday staples nobody questions in Twilight Zone Fallout of the East Coast.
I repeat myself, but not only are bills and coins are infinitely better to carry around and both exist in not just pre-war form that can be found regularly enough to still use in barter(you literally can just use Pre War Money items as a secondary form of currency with how valuable and common it is already) but both NCR and Legion mint/print their own so it's not like that is impossible. This goes beyond Bethesda trademarking random parts of the franchise for mass appeal and just ends up being borderline retarded, next people will want to use rocks or brahmin shit as currency since they're also common.
By the way, this point doesn't even bother me anymore, but I wanted to prove that nobody at Bethesda ever thought this thru when you can raise so many questions and problems so easily with this "economy". That's even before you start thinking it is just how stupid it would actually be to carry all these bottlecaps around with you for miles and miles and how long it would take to trade for each individual item. The whole point of bottlecap based economy in the original was that everyone came to The Hub or The Water Merchants came to their homes, the distances weren't that big in Fallout 1 so it served more as a local economy everyone agreed on. Local economy backed by water, a universal resource, rather than gold that nobody had at the time, see where I am going with this? Every single fantasy RPG has generic gold coins as currency for a reason, and if they don't they at least have a damn good excuse to use an alternative, it is usually written directly into the lore or the story(Gothic, for example, takes place in a prison mining colony, so whatever they mine is an actual currency you can use in-game, this is actually one of the first things you will likely try and find in the game as you start out with jack and shit when you begin the game).