I see this with good eyes, after all with a regular donation you only get the feeling of doing the right thing for others that are in need, while with such an event you also get some fun out of the whole experience, and at the same time I would think this will be a more effective way to get funds for those organizations, which will help them to fulfill their mission in a more effective way, so for what I can see everyone wins with a gambling charity.
Not a bad idea at all, your comparison also did made some sense as it's almost exactly the same kind of experience just that with donations you do it at once but with gambling you first subject your donation to some level of risk just to see if you can further make robust donations away from what you have at hand and sometimes you don't really get lucky with it so it's for me better to make a one time donation at once.
I am still yet to come to full understand of how charity gambling is actually done, I've read the op and I think I've posted one comment on this before, but coming back here and reading comments, it looks to me like this is my first time on this thread.
Does charity gambling imply a charity organization collecting donations from people, and then using the same money to gamble as a means of them trying to double the money to use for their charity work?
If this is how and what I understand it to be or mean, then it makes no sense at all, what those guys do is pure gambling and there is no better way to put it, gambling with funds donated for charity can be a very big offence in some countries, if the charity company gamble with the fund and lose it, those responsible could be held and charged with embezzlement of public fund.
Like I said before, I am yet to come to full understand of how the charity gambling works, I will try to read more so to understand it better, but if it's like what I said above, then it's not an ideal that sits well with me.