If you tried to fake these thousand coins bets wouldn't you scare your investors away lol. Doesn't make sense to me

Agreed with you these fake bets with hundred of coins these kind of scary bets worry sign about big investors once they see profit dropped suddenly by these fake bets
Dont jump into conclusion yet as this is none fake bets I would say. Basically it is pointless for Dean to fake a bets as it will only scare a potential investor. Also that you should know that Dean profitted himself from the investor as well so no point for him to fake such large bet. Even if he decided to "steal" from the investor , it will be much better for him to do it a smaller wager
amount of these bets are really out sense
Just because you never saw such huge bets, it doesnt mean that it is a fake bets. Considering mech is an old time gambler then 1k
BTC is really a small amount for him
If I am correct we can probably see that 528 BTC going to the public cold wallet later today.
If this is the same guy as greystoke then the site has gain quite a lot of profit from him