Thus, if you subscribe to the MWI, this is one of the most rational ways to make money. So, if you need money and don't follow this strategy, you are either irrational or don't really believe what you say you do (most likely both).
No: if I follow that strategy it makes it more likely that others will follow that strategy; so even if I do successfully end up in a world where I won the lottery, it may also be a world where all my love ones committed suicide.
Note that I said:
LCPW: say, no one really cares about you all that much, would you do it?
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.