I understand why people don't want everyone to know they're rich. I'm rich (not $560M, but some) and you can figure that out from various news stories, and it does affect relationships somewhat. More so outside Silicon Valley. On the other hand, I understand why lotteries want to publicize winners in their marketing. A fair deal might be, that the publicity value is defined to be X% (say 10%) of the prize, and you ca…
If I'm not mistaken, it's about more than just publicity; it's also about avoiding fraud. As someone put it before "come spend money on a chance to win a very large pot of money; don't worry, we have given some out before, but you just have to believe us".
It can also prevent a spouse or common law partner from winning the lottery in secret and taking off with all the money. It's happened more than once in Ontario, Canada, with one story making the rounds right now.[1]
[1] https://www.thestar.com/news/queenspark/2018/02/06/woman-sue...