(1) Yes, but the world can be filled with people of note, who nonetheless go about their lives without fanfire. In my military career, I'm known some real heroes, I mean honest to god super cool cats who did wondrous things. To run into many of them on the street, you might think they were lawn guys or insurance adjustors (who can also be cool people, don't get me wrong). Don't think all books can be judged by their covers.
Sorry, but that hardly applies that given the fuss the game makes about the player-characters. It doesn't make them out to be quiet, unassuming heroes - there's all that Hero of Eriador business, remember? Hero with a capital 'H', the comic-book variety.
(2) Agreed. We are extraordinary. I can live with that. I think the lore can too, even if I end up at Helm's Deep. This is the one I fully agree with.
Well no, lore can't really live with that because extraordinary heroes do great deeds, get noticed and get tales told about them. That's rather than point of the thread.
(3) Here's one I only half-agree with. Yes, elves and dwarves are uncommon in Rohan. But not necessarily lore-breakingly so. Not going to belabor the host of points made over two threads and the past three days, please feel free to refer to the rest of this thread and the 20 questions one if you haven't already followed our debates on this particular point. As for our gear being super-cool and shiny, I don't know about you but some of my toons tend to wear subdued clothing that blends into the terrain, and the others have very high quality armour that is nevertheless plain and unadorned. None of them is garishly dressed or outfitted.
Remember that player-characters are toting legendary weapons and other items made by Dwarves or Elves - that stuff is all worlds away from the mundane gear the Rohirrim had. They'd stand out. Also try to remember that the Rohirrim didn't pal around with Elves (they didn't know them, and were superstitious about them) or Dwarves (who they didn't like very much) and would be very surprised to see them turning up at Helm's Deep. Unless the Dwarf just happened to be there to try to sell them something, which would be more typical behaviour.
(4) The other that I half-agree with. No one says we're ignoring Aragorn, Legolas, and Gimli, or them us. All that is required for the lore not to be broken is that the narrator of the tale not relate to the reader how we ran into each other and talked, slapped each other on the back, high fived, shared skins of wine, whatever. After all , why would the narrator mention every single social interaction the fellowship members had with others? He was focused mainly on them, not those around them.
Oh, sure, the narrator has to conveniently fail to mention that this Hero-with-a-capital-H turned up, fought alongside Aragorn & Co. and did mighty deeds. The only way not to be noticed would be to not do any mighty deeds, which would rather obviate the point of being there, yes? Given the way the game has puffed up the player-characters, you don't get to pretend they're nobodies - and it's just not on at all if they're Dwarves, Elves or hobbits because they'd attract immediate attention.