AFAIK there is a rule that old bets are not accepted, means that any bets that happened before they officially started the live challenge should not win the challenge. Does it mean that the mod is not checking the bet IDs properly that make the old bet win the challenge? If the mod did it by mistake and if the prize has already been rewarded to the winner, at least the mod should give a warning to this user as maybe such user who tried to participate by submitting old bets can be called as cheater.
Yes, you are not allowed to post "saved" wins, but people wait for the Slot hunt to start and then they post it. The moderator did not pick up on it or he was not informed about it, so the winner was accepted.
Now, we have to understand that mistakes does happen and mods are human, but let's highlight the mistakes to prevent them in the future. A challenge is not a challenge if people post "saved" wins within 1 second of the challenge and the challenge is over in 3 minutes.... right.
They are humans too, if it was me I would have made the same mistake as well and totally forget about that rule, and not even consider people would do that. I did not even expected that people would save their wins in case something like this happens, that would be something I would not consider if it was me who had to check the wins.
In any case, obviously the ones who got it after it started, must be feeling like they have been screwed and I understand them as well, but lets give the staff a bit of break, they are ordinary people just like you and me and we all make mistakes in our life, we are not perfect, we have our own troubles and issues, plus many people go through hardship as well which makes work a lot harder to do very well too, so we should cut them some slack.