I'm done already, I'm one of the people with 4k fame.
The event is easier, even my test account which only has the free girl at <40k stats and less than 1k stamina finished it... Thus it's more accessible. I could even provide the exact stats, but why would I? At the time I posted that I estimated it to be <600k I had yet to complete it, but it isn't even incorrect and I was able to determine that by considering what would be reasonable by looking at how things were handled before.
How do we know Ashes completed the event? Because he has all the outfits, which was posted here as well as in the Discord, in addition to him getting a rounded Fame value, which only happens if you get all the Fame that the event has to offer. "We" know it because we are all capable of seeing that he got all the Fame in the leaderboards. This is common knowledge, because everyone can click on the leaderboards and see it for themselves. You can even take it one step further, as a lot of people below 4k Fame have values that they can only get if they completed the event, as nothing other than a specific combination of ranks in addition to the full event reward would result in the amount they have, but that would be a bit more effort than I would expect people to take.
The formula used to be included in the games javascript, it was removed for a while now, because it didn't really serve much of a purpose other than being part of something that emulated the fight on the client side using a seed it received from the server. Currently the game just receives all the info it needs from the server, rather than calculating it locally.
The leaderboards are not hidden knowledge. The fact that Ashes has the outfits and completed the event are not hidden knowledge.
I also never said his calculations were stupid, but the assumption he made based on the information that was available to him was. Without that assumption, he would not have calculated it to begin with and he wouldn't have thrown a tantrum.
Like I said earlier, I could share but I don't want to. There isn't anything for me to gain from it, and people would still give up on things before they start trying.
The reason whales wouldn't buy the fight renewal is also simple, there aren't a lot of people who would search through the games code every update and it was only in there during the first few days of the halloween event, and the discord is mostly inactive. The only whales on the discord are me and Ashes, the rest of the people are f2p. The majority wouldn't even know they could try it, much less actually try it. The reason I brought it up is because it shows that you have a chance at getting more as a free player than you were aware of.
Here is a screenshot of my testing account, after you finish the event it lets you use them for normal fights:
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