That's not true, the wagering requirement doesn't decrease the chance of money laundering but it increases the chance of users losing their deposit and it benefits to casino. Imagine that I am a gambling addict, deposited 1 Bitcoin, lost 0.2 Bitcoin and now I want to withdraw because I'm afraid to not lose more but then there is a wagering requirement that forces me to continue gambling in order to withdraw and that's definitely increasing my gambling addiction issues.
It works both ways but it’s really designed for AML policy since casino can be use as mixer if they will not imposed this wagering requirements. If you are genuine gambler, you will surely wager all your bankroll since you are depositing to play not to withdraw/deposit immediately.
To be fair, I don't understand why Trustdice requires 5x wagering for first-time depositors, that doesn't make sense to me.
I don’t understand either the logic behind this because x5 is surely a trap for those who don’t read the ToS while they deposit huge amount knowing that the wagering requirements is just x1 which is the standard figure for most casino.