At the linked time stamp, there is a curse of darkness floor with no effect. Can anyone explain how that happens/what settings accomplish that?

1. It's not running the vanilla game. You cannot hold R on Eden, and thereby see like what, 5x as many seeds as anyone playing the vanilla game, drastically reducing your time investment to get a viable seed, creating an unfair advantage.
2. The first input of the run, holding R to start it, is done by a tool. The run is thereby clearly a TAS. End of discussion.
3. Resetting is part of the time investment for a run, whether it counts towards the time or not. In Spelunky, an any% run takes 2 minutes, but finding the good shop needed for it takes maybe 2 hours, so during the run, you feel incredibly pressured because the total time investment for this run was 2 hours. Finding the perfect seed is part of the time investment, you gain a huge advantage in terms of your resources by letting a tool do this, even if the tool had to normally reset Eden by going back to the menu. Let me make a comparison. In Dark Souls 1, you need to get a random drop weapon to start a speedrun. How about I just mod my droprate to 100%? On the actual run, there is no difference to any other run that actually has the weapon, so this is totally fine to do right? No, it's not, because it gives me a huge advantage cutting out the time spent on failed attempts, which are part of running the game.

I really don't understand how anyone can be fine with this run. It's insulting to the runners who actually did invest their own sweat and time into getting their runs, and thereby disrespectful and insulting to the whole community.

1. It's not running the vanilla game. You cannot hold R on Eden, and thereby see like what, 5x as many seeds as anyone playing the vanilla game, drastically reducing your time investment to get a viable seed, creating an unfair advantage.
2. The first input of the run, holding R to start it, is done by a tool. The run is thereby clearly a TAS. End of discussion.
3. Resetting is part of the time investment for a run, whether it counts towards the time or not. In Spelunky, an any% run takes 2 minutes, but finding the good shop needed for it takes maybe 2 hours, so during the run, you feel incredibly pressured because the total time investment for this run was 2 hours. Finding the perfect seed is part of the time investment, you gain a huge advantage in terms of your resources by letting a tool do this, even if the tool had to normally reset Eden by going back to the menu. Let me make a comparison. In Dark Souls 1, you need to get a random drop weapon to start a speedrun. How about I just mod my droprate to 100%? On the actual run, there is no difference to any other run that actually has the weapon, so this is totally fine to do right? No, it's not, because it gives me a huge advantage cutting out the time spent on failed attempts, which are part of running the game.

I really don't understand how anyone can be fine with this run. It's insulting to the runners who actually did invest their own sweat and time into getting their runs, and thereby disrespectful and insulting to the whole community.

Title gore, I know.

vod of the whole thing.

Summary: He wrote a script to grind out resets on Eden fast, originally for Heart/Blood Rites, but apparently stopped for Brimstone/Tammy as good enough. I quite like that approach honestly for grinding out a SEEDED run. This is not what happened here though?

He then practiced the seed a bunch of times for optimal movement/perfect mapping/additional item pickups.

He then did a "legit" run of it, without having the seeded marker on screen somehow, finished in 4:13 RTA and claimed that this was a non-seeded run because the seed marker wasn't on screen, and a non-TAS because he didn't use any tools for the very run itself. We all know this is technically correct only in a completely twisted way and complete nonsense in any reasonable way you look at it.

I want to have a premature discussion about this, it's not uploaded yet but he said he will upload it and apparently thinks there is nothing wrong with his approach. He also highlighted the run on his profile as an UNSEEDED 1 Char PB already, so there is that.

If this is not a joke and you intend to upload it as a 1 char WR like you said, you cannot be serious. This is wrong on so many levels and genuinely upsetting. I don't think I need to explain why exactly this is wrong, it's evident to anyone who read the upper description.

If this is just a joke, it still raises a bunch of questions. How was he able to replay the seed without it appearing as seeded? If there is a way to do it, apparently, it means we pretty much cannot trust any offline runs anymore because you can play a known seed without the marker appearing on screen, meaning you can't trust any submitted runs that weren't streamed and, depending on how the setup worked, maybe none at all if you can just do the preparation offline and then pretend the run was done legit. So, if someone still cares about this game and the legitemacy of its run, it's a problem for them.

Edit: The run is indeed submitted as a 1 Char WR as of right now.

I expect it to be taken down immediately and that there will be some kind of consequences to him cheating like this. Because that's what it is.

Edit2: It was indeed rejected, thanks for the fast work, mods.