Souls, and Nier fans didn't try to gift a copy of their game to the motherfucking Pope. Undertale fans are the worst by a country mile. Sanctimonious blowhards, the lot of them.
Your game had a nonviolent playthrough, yes, you're so revolutionary and different. Now go eat a bag of dicks.
I used to detest Undertale fans because of how loud and obnoxious they were but lately they seem to have quieted down - this is probably the first place in several months I've seen Undertale discussed in and now whenever I want to listen to some game soundtracks on Youtube, it doesn't immediately fill my recommended video page with Undertale music.
Dark Souls fans, however, still haven't shut the fuck up. You can't go 5 minutes on the internet without seeing some mindless Souls cultist (or an ironic troll) extolling the virtues of this game. "Holy shit this new action game is terrible, I wish it was more like Dark Souls", "This other action game has swords and you can occasionally die if you're not paying attention, what a fucking Dark Souls ripoff! From Software should sue!", "Praise the sun bro xDDDDDDDD", "Wow this is like the Dark Souls of [insert word here], Dark Souls invented video games, also I'm 12 btw". This makes them a lot more annoying and most of them are as mindless as the zombies in their favorite game.
As for Nier fans, they're not even a thing. The game definitely has a fanbase and you can trigger some Nietzsche-quoting keyboard philosophers by saying the game's story is paced badly, but I've never seen Nier fans spam the shit out of some game's board or a Twitch stream's chat about how game X is not like Nier and is thus inferior and how Nier is God's gift to man.
As for the original message,
Did Souls "no reload" spoiled other games for you?
No, it really hasn't. As many people pointed out already, Roguelikes where a thing long before Dark Souls. So were games with Ironman mode. Then there are various dungeon crawlers that limit your ability to save the game to town only, so getting wiped 30 minutes into a dungeon run is a lot more disastrous than dying in DS, since your corpse will usually be 2-5 minutes of running from the spawn location. I also used to play a lot of MMORPGs as a kid where it was possible to lose items and experience on death. The prospect of getting ambushed by player killers and potentially losing your high tier weapon you spent several weeks farming an elite mob for was a lot more terrifying than dying in Dark Souls.
Dying in Dark Souls is not even much of an issue. Yeah you drop your souls, so what? You can just get them back. Also you can periodically return to the checkpoint to spend them once you have enough for a level up, trivializing the death penalty completely. Even if you lose your souls, it's not a big deal. You generally won't be carrying more than 1-2 level's worth anyway. "Oh no, I dropped my 10k souls, now I won't be able to increase my damage to 202 from 200 and the next boss is going to die from 10 hits regardless" - were usually my thoughts.